Home / 9,866.17-13,614.65-5,389.91

Finding the Fourth Proportional to 9,866.17, 13,614.65 and 5,389.91

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Solution

The fourth proportional to 9,866.17, 13,614.65 and 5,389.91 is: 7,437.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.17 : 13,614.65 = 5,389.91 : x
  2. Step 2: Convert to fraction form
    9,866.17/13,614.65 = 5,389.91/x
  3. Step 3: Cross multiply
    9,866.17x = 13,614.65 × 5,389.91
  4. Step 4: Simplify right side
    9,866.17x = 73,381,714.43
  5. Step 5: Solve for x
    x = 73,381,714.43/9,866.17
  6. Step 6: Final answer
    x = 7,437.71

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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.