Home / 18,270.06-27,402.95-5,123.49

Finding the Fourth Proportional to 18,270.06, 27,402.95 and 5,123.49

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Solution

The fourth proportional to 18,270.06, 27,402.95 and 5,123.49 is: 7,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.06 : 27,402.95 = 5,123.49 : x
  2. Step 2: Convert to fraction form
    18,270.06/27,402.95 = 5,123.49/x
  3. Step 3: Cross multiply
    18,270.06x = 27,402.95 × 5,123.49
  4. Step 4: Simplify right side
    18,270.06x = 140,398,714.68
  5. Step 5: Solve for x
    x = 140,398,714.68/18,270.06
  6. Step 6: Final answer
    x = 7,684.63

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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.