Home / 12,371.89-18,562.49-7,444.98

Finding the Fourth Proportional to 12,371.89, 18,562.49 and 7,444.98

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Solution

The fourth proportional to 12,371.89, 18,562.49 and 7,444.98 is: 11,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.89 : 18,562.49 = 7,444.98 : x
  2. Step 2: Convert to fraction form
    12,371.89/18,562.49 = 7,444.98/x
  3. Step 3: Cross multiply
    12,371.89x = 18,562.49 × 7,444.98
  4. Step 4: Simplify right side
    12,371.89x = 138,197,366.80
  5. Step 5: Solve for x
    x = 138,197,366.80/12,371.89
  6. Step 6: Final answer
    x = 11,170.27

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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.