Home / 15,394.95-21,244.98-8,321.35

Finding the Fourth Proportional to 15,394.95, 21,244.98 and 8,321.35

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Solution

The fourth proportional to 15,394.95, 21,244.98 and 8,321.35 is: 11,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.95 : 21,244.98 = 8,321.35 : x
  2. Step 2: Convert to fraction form
    15,394.95/21,244.98 = 8,321.35/x
  3. Step 3: Cross multiply
    15,394.95x = 21,244.98 × 8,321.35
  4. Step 4: Simplify right side
    15,394.95x = 176,786,914.32
  5. Step 5: Solve for x
    x = 176,786,914.32/15,394.95
  6. Step 6: Final answer
    x = 11,483.44

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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.