Home / 18,040.64-24,885.12-10,971.92

Finding the Fourth Proportional to 18,040.64, 24,885.12 and 10,971.92

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Solution

The fourth proportional to 18,040.64, 24,885.12 and 10,971.92 is: 15,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.64 : 24,885.12 = 10,971.92 : x
  2. Step 2: Convert to fraction form
    18,040.64/24,885.12 = 10,971.92/x
  3. Step 3: Cross multiply
    18,040.64x = 24,885.12 × 10,971.92
  4. Step 4: Simplify right side
    18,040.64x = 273,037,545.83
  5. Step 5: Solve for x
    x = 273,037,545.83/18,040.64
  6. Step 6: Final answer
    x = 15,134.58

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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.