Home / 15,369.85-21,224.28-9,714.63

Finding the Fourth Proportional to 15,369.85, 21,224.28 and 9,714.63

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Solution

The fourth proportional to 15,369.85, 21,224.28 and 9,714.63 is: 13,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.85 : 21,224.28 = 9,714.63 : x
  2. Step 2: Convert to fraction form
    15,369.85/21,224.28 = 9,714.63/x
  3. Step 3: Cross multiply
    15,369.85x = 21,224.28 × 9,714.63
  4. Step 4: Simplify right side
    15,369.85x = 206,186,088.59
  5. Step 5: Solve for x
    x = 206,186,088.59/15,369.85
  6. Step 6: Final answer
    x = 13,414.97

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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.