Home / 13,103.28-18,081.91-7,134.93

Finding the Fourth Proportional to 13,103.28, 18,081.91 and 7,134.93

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Solution

The fourth proportional to 13,103.28, 18,081.91 and 7,134.93 is: 9,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.28 : 18,081.91 = 7,134.93 : x
  2. Step 2: Convert to fraction form
    13,103.28/18,081.91 = 7,134.93/x
  3. Step 3: Cross multiply
    13,103.28x = 18,081.91 × 7,134.93
  4. Step 4: Simplify right side
    13,103.28x = 129,013,162.12
  5. Step 5: Solve for x
    x = 129,013,162.12/13,103.28
  6. Step 6: Final answer
    x = 9,845.87

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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.