Home / 15,557.25-21,468.27-8,483.61

Finding the Fourth Proportional to 15,557.25, 21,468.27 and 8,483.61

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Solution

The fourth proportional to 15,557.25, 21,468.27 and 8,483.61 is: 11,706.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.25 : 21,468.27 = 8,483.61 : x
  2. Step 2: Convert to fraction form
    15,557.25/21,468.27 = 8,483.61/x
  3. Step 3: Cross multiply
    15,557.25x = 21,468.27 × 8,483.61
  4. Step 4: Simplify right side
    15,557.25x = 182,128,430.05
  5. Step 5: Solve for x
    x = 182,128,430.05/15,557.25
  6. Step 6: Final answer
    x = 11,706.98

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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.