Home / 10,140.60-15,203.70-3,898.20

Finding the Fourth Proportional to 10,140.60, 15,203.70 and 3,898.20

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Solution

The fourth proportional to 10,140.60, 15,203.70 and 3,898.20 is: 5,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.60 : 15,203.70 = 3,898.20 : x
  2. Step 2: Convert to fraction form
    10,140.60/15,203.70 = 3,898.20/x
  3. Step 3: Cross multiply
    10,140.60x = 15,203.70 × 3,898.20
  4. Step 4: Simplify right side
    10,140.60x = 59,267,063.34
  5. Step 5: Solve for x
    x = 59,267,063.34/10,140.60
  6. Step 6: Final answer
    x = 5,844.53

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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.