Home / 12,927.23-17,839.11-7,899.87

Finding the Fourth Proportional to 12,927.23, 17,839.11 and 7,899.87

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Solution

The fourth proportional to 12,927.23, 17,839.11 and 7,899.87 is: 10,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.23 : 17,839.11 = 7,899.87 : x
  2. Step 2: Convert to fraction form
    12,927.23/17,839.11 = 7,899.87/x
  3. Step 3: Cross multiply
    12,927.23x = 17,839.11 × 7,899.87
  4. Step 4: Simplify right side
    12,927.23x = 140,926,521.22
  5. Step 5: Solve for x
    x = 140,926,521.22/12,927.23
  6. Step 6: Final answer
    x = 10,901.53

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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.