Home / 15,862.49-21,892.18-9,148.12

Finding the Fourth Proportional to 15,862.49, 21,892.18 and 9,148.12

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Solution

The fourth proportional to 15,862.49, 21,892.18 and 9,148.12 is: 12,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862.49 : 21,892.18 = 9,148.12 : x
  2. Step 2: Convert to fraction form
    15,862.49/21,892.18 = 9,148.12/x
  3. Step 3: Cross multiply
    15,862.49x = 21,892.18 × 9,148.12
  4. Step 4: Simplify right side
    15,862.49x = 200,272,289.70
  5. Step 5: Solve for x
    x = 200,272,289.70/15,862.49
  6. Step 6: Final answer
    x = 12,625.53

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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.