Home / 15,542.94-21,452.05-9,169.15

Finding the Fourth Proportional to 15,542.94, 21,452.05 and 9,169.15

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Solution

The fourth proportional to 15,542.94, 21,452.05 and 9,169.15 is: 12,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.94 : 21,452.05 = 9,169.15 : x
  2. Step 2: Convert to fraction form
    15,542.94/21,452.05 = 9,169.15/x
  3. Step 3: Cross multiply
    15,542.94x = 21,452.05 × 9,169.15
  4. Step 4: Simplify right side
    15,542.94x = 196,696,957.00
  5. Step 5: Solve for x
    x = 196,696,957.00/15,542.94
  6. Step 6: Final answer
    x = 12,655.07

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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.