Home / 10,117.44-15,177.60-5,192.64

Finding the Fourth Proportional to 10,117.44, 15,177.60 and 5,192.64

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Solution

The fourth proportional to 10,117.44, 15,177.60 and 5,192.64 is: 7,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.44 : 15,177.60 = 5,192.64 : x
  2. Step 2: Convert to fraction form
    10,117.44/15,177.60 = 5,192.64/x
  3. Step 3: Cross multiply
    10,117.44x = 15,177.60 × 5,192.64
  4. Step 4: Simplify right side
    10,117.44x = 78,811,812.86
  5. Step 5: Solve for x
    x = 78,811,812.86/10,117.44
  6. Step 6: Final answer
    x = 7,789.70

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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.