Home / 15,411.28-21,266.35-9,442.13

Finding the Fourth Proportional to 15,411.28, 21,266.35 and 9,442.13

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Solution

The fourth proportional to 15,411.28, 21,266.35 and 9,442.13 is: 13,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.28 : 21,266.35 = 9,442.13 : x
  2. Step 2: Convert to fraction form
    15,411.28/21,266.35 = 9,442.13/x
  3. Step 3: Cross multiply
    15,411.28x = 21,266.35 × 9,442.13
  4. Step 4: Simplify right side
    15,411.28x = 200,799,594.11
  5. Step 5: Solve for x
    x = 200,799,594.11/15,411.28
  6. Step 6: Final answer
    x = 13,029.40

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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.