Home / 18,271.38-27,415.44-9,938.91

Finding the Fourth Proportional to 18,271.38, 27,415.44 and 9,938.91

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Solution

The fourth proportional to 18,271.38, 27,415.44 and 9,938.91 is: 14,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.38 : 27,415.44 = 9,938.91 : x
  2. Step 2: Convert to fraction form
    18,271.38/27,415.44 = 9,938.91/x
  3. Step 3: Cross multiply
    18,271.38x = 27,415.44 × 9,938.91
  4. Step 4: Simplify right side
    18,271.38x = 272,479,590.77
  5. Step 5: Solve for x
    x = 272,479,590.77/18,271.38
  6. Step 6: Final answer
    x = 14,912.92

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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.