Home / 12,480.68-17,218.81-9,610.29

Finding the Fourth Proportional to 12,480.68, 17,218.81 and 9,610.29

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Solution

The fourth proportional to 12,480.68, 17,218.81 and 9,610.29 is: 13,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.68 : 17,218.81 = 9,610.29 : x
  2. Step 2: Convert to fraction form
    12,480.68/17,218.81 = 9,610.29/x
  3. Step 3: Cross multiply
    12,480.68x = 17,218.81 × 9,610.29
  4. Step 4: Simplify right side
    12,480.68x = 165,477,769.57
  5. Step 5: Solve for x
    x = 165,477,769.57/12,480.68
  6. Step 6: Final answer
    x = 13,258.71

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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.