Home / 10,515.12-15,772.68-3,589.68

Finding the Fourth Proportional to 10,515.12, 15,772.68 and 3,589.68

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Solution

The fourth proportional to 10,515.12, 15,772.68 and 3,589.68 is: 5,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.12 : 15,772.68 = 3,589.68 : x
  2. Step 2: Convert to fraction form
    10,515.12/15,772.68 = 3,589.68/x
  3. Step 3: Cross multiply
    10,515.12x = 15,772.68 × 3,589.68
  4. Step 4: Simplify right side
    10,515.12x = 56,618,873.94
  5. Step 5: Solve for x
    x = 56,618,873.94/10,515.12
  6. Step 6: Final answer
    x = 5,384.52

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Similar ratio
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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.