Home / 11,006.29-15,167.68-7,857.01

Finding the Fourth Proportional to 11,006.29, 15,167.68 and 7,857.01

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Solution

The fourth proportional to 11,006.29, 15,167.68 and 7,857.01 is: 10,827.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.29 : 15,167.68 = 7,857.01 : x
  2. Step 2: Convert to fraction form
    11,006.29/15,167.68 = 7,857.01/x
  3. Step 3: Cross multiply
    11,006.29x = 15,167.68 × 7,857.01
  4. Step 4: Simplify right side
    11,006.29x = 119,172,613.44
  5. Step 5: Solve for x
    x = 119,172,613.44/11,006.29
  6. Step 6: Final answer
    x = 10,827.68

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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.