Home / 10,513.12-15,769.68-3,587.68

Finding the Fourth Proportional to 10,513.12, 15,769.68 and 3,587.68

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Solution

The fourth proportional to 10,513.12, 15,769.68 and 3,587.68 is: 5,381.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.12 : 15,769.68 = 3,587.68 : x
  2. Step 2: Convert to fraction form
    10,513.12/15,769.68 = 3,587.68/x
  3. Step 3: Cross multiply
    10,513.12x = 15,769.68 × 3,587.68
  4. Step 4: Simplify right side
    10,513.12x = 56,576,565.54
  5. Step 5: Solve for x
    x = 56,576,565.54/10,513.12
  6. Step 6: Final answer
    x = 5,381.52

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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.