Home / 10,062.60-15,045.30-7,438.20

Finding the Fourth Proportional to 10,062.60, 15,045.30 and 7,438.20

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Solution

The fourth proportional to 10,062.60, 15,045.30 and 7,438.20 is: 11,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,062.60 : 15,045.30 = 7,438.20 : x
  2. Step 2: Convert to fraction form
    10,062.60/15,045.30 = 7,438.20/x
  3. Step 3: Cross multiply
    10,062.60x = 15,045.30 × 7,438.20
  4. Step 4: Simplify right side
    10,062.60x = 111,909,950.46
  5. Step 5: Solve for x
    x = 111,909,950.46/10,062.60
  6. Step 6: Final answer
    x = 11,121.38

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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.