Home / 10,088.66-15,115.68-5,645.36

Finding the Fourth Proportional to 10,088.66, 15,115.68 and 5,645.36

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Solution

The fourth proportional to 10,088.66, 15,115.68 and 5,645.36 is: 8,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.66 : 15,115.68 = 5,645.36 : x
  2. Step 2: Convert to fraction form
    10,088.66/15,115.68 = 5,645.36/x
  3. Step 3: Cross multiply
    10,088.66x = 15,115.68 × 5,645.36
  4. Step 4: Simplify right side
    10,088.66x = 85,333,493.03
  5. Step 5: Solve for x
    x = 85,333,493.03/10,088.66
  6. Step 6: Final answer
    x = 8,458.36

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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.