Home / 10,122.74-15,188.84-4,577.75

Finding the Fourth Proportional to 10,122.74, 15,188.84 and 4,577.75

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Solution

The fourth proportional to 10,122.74, 15,188.84 and 4,577.75 is: 6,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.74 : 15,188.84 = 4,577.75 : x
  2. Step 2: Convert to fraction form
    10,122.74/15,188.84 = 4,577.75/x
  3. Step 3: Cross multiply
    10,122.74x = 15,188.84 × 4,577.75
  4. Step 4: Simplify right side
    10,122.74x = 69,530,689.42
  5. Step 5: Solve for x
    x = 69,530,689.42/10,122.74
  6. Step 6: Final answer
    x = 6,868.76

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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.