Home / 11,125.59-15,350.38-7,152.13

Finding the Fourth Proportional to 11,125.59, 15,350.38 and 7,152.13

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Solution

The fourth proportional to 11,125.59, 15,350.38 and 7,152.13 is: 9,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.59 : 15,350.38 = 7,152.13 : x
  2. Step 2: Convert to fraction form
    11,125.59/15,350.38 = 7,152.13/x
  3. Step 3: Cross multiply
    11,125.59x = 15,350.38 × 7,152.13
  4. Step 4: Simplify right side
    11,125.59x = 109,787,913.31
  5. Step 5: Solve for x
    x = 109,787,913.31/11,125.59
  6. Step 6: Final answer
    x = 9,868.05

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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.