Home / 10,250.47-15,375.69-7,913.87

Finding the Fourth Proportional to 10,250.47, 15,375.69 and 7,913.87

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Solution

The fourth proportional to 10,250.47, 15,375.69 and 7,913.87 is: 11,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,250.47 : 15,375.69 = 7,913.87 : x
  2. Step 2: Convert to fraction form
    10,250.47/15,375.69 = 7,913.87/x
  3. Step 3: Cross multiply
    10,250.47x = 15,375.69 × 7,913.87
  4. Step 4: Simplify right side
    10,250.47x = 121,681,192.60
  5. Step 5: Solve for x
    x = 121,681,192.60/10,250.47
  6. Step 6: Final answer
    x = 11,870.80

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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.