Home / 13,538.44-18,687.02-7,874.52

Finding the Fourth Proportional to 13,538.44, 18,687.02 and 7,874.52

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Solution

The fourth proportional to 13,538.44, 18,687.02 and 7,874.52 is: 10,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.44 : 18,687.02 = 7,874.52 : x
  2. Step 2: Convert to fraction form
    13,538.44/18,687.02 = 7,874.52/x
  3. Step 3: Cross multiply
    13,538.44x = 18,687.02 × 7,874.52
  4. Step 4: Simplify right side
    13,538.44x = 147,151,312.73
  5. Step 5: Solve for x
    x = 147,151,312.73/13,538.44
  6. Step 6: Final answer
    x = 10,869.15

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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.