Home / 18,203.52-25,123.28-10,247.30

Finding the Fourth Proportional to 18,203.52, 25,123.28 and 10,247.30

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Solution

The fourth proportional to 18,203.52, 25,123.28 and 10,247.30 is: 14,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.52 : 25,123.28 = 10,247.30 : x
  2. Step 2: Convert to fraction form
    18,203.52/25,123.28 = 10,247.30/x
  3. Step 3: Cross multiply
    18,203.52x = 25,123.28 × 10,247.30
  4. Step 4: Simplify right side
    18,203.52x = 257,445,610.29
  5. Step 5: Solve for x
    x = 257,445,610.29/18,203.52
  6. Step 6: Final answer
    x = 14,142.63

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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.