Home / 13,177.36-18,184.70-7,127.61

Finding the Fourth Proportional to 13,177.36, 18,184.70 and 7,127.61

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Solution

The fourth proportional to 13,177.36, 18,184.70 and 7,127.61 is: 9,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.36 : 18,184.70 = 7,127.61 : x
  2. Step 2: Convert to fraction form
    13,177.36/18,184.70 = 7,127.61/x
  3. Step 3: Cross multiply
    13,177.36x = 18,184.70 × 7,127.61
  4. Step 4: Simplify right side
    13,177.36x = 129,613,449.57
  5. Step 5: Solve for x
    x = 129,613,449.57/13,177.36
  6. Step 6: Final answer
    x = 9,836.07

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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.