Home / 18,265.42-27,402.86-5,117.91

Finding the Fourth Proportional to 18,265.42, 27,402.86 and 5,117.91

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Solution

The fourth proportional to 18,265.42, 27,402.86 and 5,117.91 is: 7,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.42 : 27,402.86 = 5,117.91 : x
  2. Step 2: Convert to fraction form
    18,265.42/27,402.86 = 5,117.91/x
  3. Step 3: Cross multiply
    18,265.42x = 27,402.86 × 5,117.91
  4. Step 4: Simplify right side
    18,265.42x = 140,245,371.22
  5. Step 5: Solve for x
    x = 140,245,371.22/18,265.42
  6. Step 6: Final answer
    x = 7,678.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.