Home / 14,376.80-21,565.20-9,711.20

Finding the Fourth Proportional to 14,376.80, 21,565.20 and 9,711.20

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Solution

The fourth proportional to 14,376.80, 21,565.20 and 9,711.20 is: 14,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,376.80 : 21,565.20 = 9,711.20 : x
  2. Step 2: Convert to fraction form
    14,376.80/21,565.20 = 9,711.20/x
  3. Step 3: Cross multiply
    14,376.80x = 21,565.20 × 9,711.20
  4. Step 4: Simplify right side
    14,376.80x = 209,423,970.24
  5. Step 5: Solve for x
    x = 209,423,970.24/14,376.80
  6. Step 6: Final answer
    x = 14,566.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.