Home / 10,310.68-15,467.10-5,115.16

Finding the Fourth Proportional to 10,310.68, 15,467.10 and 5,115.16

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Solution

The fourth proportional to 10,310.68, 15,467.10 and 5,115.16 is: 7,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.68 : 15,467.10 = 5,115.16 : x
  2. Step 2: Convert to fraction form
    10,310.68/15,467.10 = 5,115.16/x
  3. Step 3: Cross multiply
    10,310.68x = 15,467.10 × 5,115.16
  4. Step 4: Simplify right side
    10,310.68x = 79,116,691.24
  5. Step 5: Solve for x
    x = 79,116,691.24/10,310.68
  6. Step 6: Final answer
    x = 7,673.28

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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.