Home / 11,167.65-15,411.49-6,387.52

Finding the Fourth Proportional to 11,167.65, 15,411.49 and 6,387.52

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Solution

The fourth proportional to 11,167.65, 15,411.49 and 6,387.52 is: 8,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.65 : 15,411.49 = 6,387.52 : x
  2. Step 2: Convert to fraction form
    11,167.65/15,411.49 = 6,387.52/x
  3. Step 3: Cross multiply
    11,167.65x = 15,411.49 × 6,387.52
  4. Step 4: Simplify right side
    11,167.65x = 98,441,146.11
  5. Step 5: Solve for x
    x = 98,441,146.11/11,167.65
  6. Step 6: Final answer
    x = 8,814.85

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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.