Home / 18,271.89-27,407.45-5,123.93

Finding the Fourth Proportional to 18,271.89, 27,407.45 and 5,123.93

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Solution

The fourth proportional to 18,271.89, 27,407.45 and 5,123.93 is: 7,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.89 : 27,407.45 = 5,123.93 : x
  2. Step 2: Convert to fraction form
    18,271.89/27,407.45 = 5,123.93/x
  3. Step 3: Cross multiply
    18,271.89x = 27,407.45 × 5,123.93
  4. Step 4: Simplify right side
    18,271.89x = 140,433,692.62
  5. Step 5: Solve for x
    x = 140,433,692.62/18,271.89
  6. Step 6: Final answer
    x = 7,685.78

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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.