Home / 12,742.32-19,111.40-3,382.92

Finding the Fourth Proportional to 12,742.32, 19,111.40 and 3,382.92

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Solution

The fourth proportional to 12,742.32, 19,111.40 and 3,382.92 is: 5,073.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.32 : 19,111.40 = 3,382.92 : x
  2. Step 2: Convert to fraction form
    12,742.32/19,111.40 = 3,382.92/x
  3. Step 3: Cross multiply
    12,742.32x = 19,111.40 × 3,382.92
  4. Step 4: Simplify right side
    12,742.32x = 64,652,337.29
  5. Step 5: Solve for x
    x = 64,652,337.29/12,742.32
  6. Step 6: Final answer
    x = 5,073.83

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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.