Home / 10,117.02-15,174.78-3,877.60

Finding the Fourth Proportional to 10,117.02, 15,174.78 and 3,877.60

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Solution

The fourth proportional to 10,117.02, 15,174.78 and 3,877.60 is: 5,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.02 : 15,174.78 = 3,877.60 : x
  2. Step 2: Convert to fraction form
    10,117.02/15,174.78 = 3,877.60/x
  3. Step 3: Cross multiply
    10,117.02x = 15,174.78 × 3,877.60
  4. Step 4: Simplify right side
    10,117.02x = 58,841,726.93
  5. Step 5: Solve for x
    x = 58,841,726.93/10,117.02
  6. Step 6: Final answer
    x = 5,816.11

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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.