Home / 12,444.92-17,176.34-7,139.80

Finding the Fourth Proportional to 12,444.92, 17,176.34 and 7,139.80

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Solution

The fourth proportional to 12,444.92, 17,176.34 and 7,139.80 is: 9,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.92 : 17,176.34 = 7,139.80 : x
  2. Step 2: Convert to fraction form
    12,444.92/17,176.34 = 7,139.80/x
  3. Step 3: Cross multiply
    12,444.92x = 17,176.34 × 7,139.80
  4. Step 4: Simplify right side
    12,444.92x = 122,635,632.33
  5. Step 5: Solve for x
    x = 122,635,632.33/12,444.92
  6. Step 6: Final answer
    x = 9,854.27

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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.