Home / 10,120.18-15,170.03-4,188.88

Finding the Fourth Proportional to 10,120.18, 15,170.03 and 4,188.88

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Solution

The fourth proportional to 10,120.18, 15,170.03 and 4,188.88 is: 6,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.18 : 15,170.03 = 4,188.88 : x
  2. Step 2: Convert to fraction form
    10,120.18/15,170.03 = 4,188.88/x
  3. Step 3: Cross multiply
    10,120.18x = 15,170.03 × 4,188.88
  4. Step 4: Simplify right side
    10,120.18x = 63,545,435.27
  5. Step 5: Solve for x
    x = 63,545,435.27/10,120.18
  6. Step 6: Final answer
    x = 6,279.08

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1.5x scale

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.