Home / 15,423.32-21,294.58-10,127.12

Finding the Fourth Proportional to 15,423.32, 21,294.58 and 10,127.12

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Solution

The fourth proportional to 15,423.32, 21,294.58 and 10,127.12 is: 13,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.32 : 21,294.58 = 10,127.12 : x
  2. Step 2: Convert to fraction form
    15,423.32/21,294.58 = 10,127.12/x
  3. Step 3: Cross multiply
    15,423.32x = 21,294.58 × 10,127.12
  4. Step 4: Simplify right side
    15,423.32x = 215,652,767.01
  5. Step 5: Solve for x
    x = 215,652,767.01/15,423.32
  6. Step 6: Final answer
    x = 13,982.25

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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.