Home / 10,115.68-15,173.52-6,652.12

Finding the Fourth Proportional to 10,115.68, 15,173.52 and 6,652.12

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Solution

The fourth proportional to 10,115.68, 15,173.52 and 6,652.12 is: 9,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.68 : 15,173.52 = 6,652.12 : x
  2. Step 2: Convert to fraction form
    10,115.68/15,173.52 = 6,652.12/x
  3. Step 3: Cross multiply
    10,115.68x = 15,173.52 × 6,652.12
  4. Step 4: Simplify right side
    10,115.68x = 100,936,075.86
  5. Step 5: Solve for x
    x = 100,936,075.86/10,115.68
  6. Step 6: Final answer
    x = 9,978.18

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Double scale
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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.