Home / 10,177.08-15,264.60-2,782.20

Finding the Fourth Proportional to 10,177.08, 15,264.60 and 2,782.20

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Solution

The fourth proportional to 10,177.08, 15,264.60 and 2,782.20 is: 4,173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.08 : 15,264.60 = 2,782.20 : x
  2. Step 2: Convert to fraction form
    10,177.08/15,264.60 = 2,782.20/x
  3. Step 3: Cross multiply
    10,177.08x = 15,264.60 × 2,782.20
  4. Step 4: Simplify right side
    10,177.08x = 42,469,170.12
  5. Step 5: Solve for x
    x = 42,469,170.12/10,177.08
  6. Step 6: Final answer
    x = 4,173.02

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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.