Home / 14,864.14-20,513.10-8,491.78

Finding the Fourth Proportional to 14,864.14, 20,513.10 and 8,491.78

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Solution

The fourth proportional to 14,864.14, 20,513.10 and 8,491.78 is: 11,718.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,864.14 : 20,513.10 = 8,491.78 : x
  2. Step 2: Convert to fraction form
    14,864.14/20,513.10 = 8,491.78/x
  3. Step 3: Cross multiply
    14,864.14x = 20,513.10 × 8,491.78
  4. Step 4: Simplify right side
    14,864.14x = 174,192,732.32
  5. Step 5: Solve for x
    x = 174,192,732.32/14,864.14
  6. Step 6: Final answer
    x = 11,718.99

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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.