Home / 10,100.40-15,156.97-4,257.01

Finding the Fourth Proportional to 10,100.40, 15,156.97 and 4,257.01

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Solution

The fourth proportional to 10,100.40, 15,156.97 and 4,257.01 is: 6,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.40 : 15,156.97 = 4,257.01 : x
  2. Step 2: Convert to fraction form
    10,100.40/15,156.97 = 4,257.01/x
  3. Step 3: Cross multiply
    10,100.40x = 15,156.97 × 4,257.01
  4. Step 4: Simplify right side
    10,100.40x = 64,523,319.85
  5. Step 5: Solve for x
    x = 64,523,319.85/10,100.40
  6. Step 6: Final answer
    x = 6,388.20

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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.