Home / 18,174.47-25,079.29-10,215.20

Finding the Fourth Proportional to 18,174.47, 25,079.29 and 10,215.20

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Solution

The fourth proportional to 18,174.47, 25,079.29 and 10,215.20 is: 14,096.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.47 : 25,079.29 = 10,215.20 : x
  2. Step 2: Convert to fraction form
    18,174.47/25,079.29 = 10,215.20/x
  3. Step 3: Cross multiply
    18,174.47x = 25,079.29 × 10,215.20
  4. Step 4: Simplify right side
    18,174.47x = 256,190,000.37
  5. Step 5: Solve for x
    x = 256,190,000.37/18,174.47
  6. Step 6: Final answer
    x = 14,096.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.