Home / 15,467.30-21,344.95-8,393.73

Finding the Fourth Proportional to 15,467.30, 21,344.95 and 8,393.73

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Solution

The fourth proportional to 15,467.30, 21,344.95 and 8,393.73 is: 11,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.30 : 21,344.95 = 8,393.73 : x
  2. Step 2: Convert to fraction form
    15,467.30/21,344.95 = 8,393.73/x
  3. Step 3: Cross multiply
    15,467.30x = 21,344.95 × 8,393.73
  4. Step 4: Simplify right side
    15,467.30x = 179,163,677.61
  5. Step 5: Solve for x
    x = 179,163,677.61/15,467.30
  6. Step 6: Final answer
    x = 11,583.38

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Half scale
Find fourth proportional to 30,934.61, 42,689.90 and 16,787.45
Double scale
Find fourth proportional to 15,468.30, 21,346.33 and 8,394.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.