Home / 14,809.28-20,439.68-9,510.80

Finding the Fourth Proportional to 14,809.28, 20,439.68 and 9,510.80

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Solution

The fourth proportional to 14,809.28, 20,439.68 and 9,510.80 is: 13,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,809.28 : 20,439.68 = 9,510.80 : x
  2. Step 2: Convert to fraction form
    14,809.28/20,439.68 = 9,510.80/x
  3. Step 3: Cross multiply
    14,809.28x = 20,439.68 × 9,510.80
  4. Step 4: Simplify right side
    14,809.28x = 194,397,708.54
  5. Step 5: Solve for x
    x = 194,397,708.54/14,809.28
  6. Step 6: Final answer
    x = 13,126.75

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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.