Home / 12,348.28-17,039.66-7,042.76

Finding the Fourth Proportional to 12,348.28, 17,039.66 and 7,042.76

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Solution

The fourth proportional to 12,348.28, 17,039.66 and 7,042.76 is: 9,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.28 : 17,039.66 = 7,042.76 : x
  2. Step 2: Convert to fraction form
    12,348.28/17,039.66 = 7,042.76/x
  3. Step 3: Cross multiply
    12,348.28x = 17,039.66 × 7,042.76
  4. Step 4: Simplify right side
    12,348.28x = 120,006,235.86
  5. Step 5: Solve for x
    x = 120,006,235.86/12,348.28
  6. Step 6: Final answer
    x = 9,718.46

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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.