Home / 9,115.06-13,650.50-5,207.62

Finding the Fourth Proportional to 9,115.06, 13,650.50 and 5,207.62

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Solution

The fourth proportional to 9,115.06, 13,650.50 and 5,207.62 is: 7,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.06 : 13,650.50 = 5,207.62 : x
  2. Step 2: Convert to fraction form
    9,115.06/13,650.50 = 5,207.62/x
  3. Step 3: Cross multiply
    9,115.06x = 13,650.50 × 5,207.62
  4. Step 4: Simplify right side
    9,115.06x = 71,086,616.81
  5. Step 5: Solve for x
    x = 71,086,616.81/9,115.06
  6. Step 6: Final answer
    x = 7,798.81

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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.