Home / 10,125.28-15,187.86-3,458.56

Finding the Fourth Proportional to 10,125.28, 15,187.86 and 3,458.56

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Solution

The fourth proportional to 10,125.28, 15,187.86 and 3,458.56 is: 5,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.28 : 15,187.86 = 3,458.56 : x
  2. Step 2: Convert to fraction form
    10,125.28/15,187.86 = 3,458.56/x
  3. Step 3: Cross multiply
    10,125.28x = 15,187.86 × 3,458.56
  4. Step 4: Simplify right side
    10,125.28x = 52,528,125.08
  5. Step 5: Solve for x
    x = 52,528,125.08/10,125.28
  6. Step 6: Final answer
    x = 5,187.82

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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.