Home / 14,115.99-21,169.65-9,761.43

Finding the Fourth Proportional to 14,115.99, 21,169.65 and 9,761.43

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Solution

The fourth proportional to 14,115.99, 21,169.65 and 9,761.43 is: 14,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.99 : 21,169.65 = 9,761.43 : x
  2. Step 2: Convert to fraction form
    14,115.99/21,169.65 = 9,761.43/x
  3. Step 3: Cross multiply
    14,115.99x = 21,169.65 × 9,761.43
  4. Step 4: Simplify right side
    14,115.99x = 206,646,056.60
  5. Step 5: Solve for x
    x = 206,646,056.60/14,115.99
  6. Step 6: Final answer
    x = 14,639.15

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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.