Home / 8,966.14-12,371.26-5,429.28

Finding the Fourth Proportional to 8,966.14, 12,371.26 and 5,429.28

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Solution

The fourth proportional to 8,966.14, 12,371.26 and 5,429.28 is: 7,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.14 : 12,371.26 = 5,429.28 : x
  2. Step 2: Convert to fraction form
    8,966.14/12,371.26 = 5,429.28/x
  3. Step 3: Cross multiply
    8,966.14x = 12,371.26 × 5,429.28
  4. Step 4: Simplify right side
    8,966.14x = 67,167,034.49
  5. Step 5: Solve for x
    x = 67,167,034.49/8,966.14
  6. Step 6: Final answer
    x = 7,491.19

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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.