Home / 10,438.14-15,657.20-3,517.50

Finding the Fourth Proportional to 10,438.14, 15,657.20 and 3,517.50

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Solution

The fourth proportional to 10,438.14, 15,657.20 and 3,517.50 is: 5,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.14 : 15,657.20 = 3,517.50 : x
  2. Step 2: Convert to fraction form
    10,438.14/15,657.20 = 3,517.50/x
  3. Step 3: Cross multiply
    10,438.14x = 15,657.20 × 3,517.50
  4. Step 4: Simplify right side
    10,438.14x = 55,074,201
  5. Step 5: Solve for x
    x = 55,074,201/10,438.14
  6. Step 6: Final answer
    x = 5,276.25

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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.