Home / 14,812.28-20,443.78-9,513.80

Finding the Fourth Proportional to 14,812.28, 20,443.78 and 9,513.80

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Solution

The fourth proportional to 14,812.28, 20,443.78 and 9,513.80 is: 13,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,812.28 : 20,443.78 = 9,513.80 : x
  2. Step 2: Convert to fraction form
    14,812.28/20,443.78 = 9,513.80/x
  3. Step 3: Cross multiply
    14,812.28x = 20,443.78 × 9,513.80
  4. Step 4: Simplify right side
    14,812.28x = 194,498,034.16
  5. Step 5: Solve for x
    x = 194,498,034.16/14,812.28
  6. Step 6: Final answer
    x = 13,130.86

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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.