Home / 11,125.12-15,341.76-9,375.04

Finding the Fourth Proportional to 11,125.12, 15,341.76 and 9,375.04

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Solution

The fourth proportional to 11,125.12, 15,341.76 and 9,375.04 is: 12,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.12 : 15,341.76 = 9,375.04 : x
  2. Step 2: Convert to fraction form
    11,125.12/15,341.76 = 9,375.04/x
  3. Step 3: Cross multiply
    11,125.12x = 15,341.76 × 9,375.04
  4. Step 4: Simplify right side
    11,125.12x = 143,829,613.67
  5. Step 5: Solve for x
    x = 143,829,613.67/11,125.12
  6. Step 6: Final answer
    x = 12,928.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.