Home / 8,830.27-12,180.36-5,242.79

Finding the Fourth Proportional to 8,830.27, 12,180.36 and 5,242.79

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Solution

The fourth proportional to 8,830.27, 12,180.36 and 5,242.79 is: 7,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.27 : 12,180.36 = 5,242.79 : x
  2. Step 2: Convert to fraction form
    8,830.27/12,180.36 = 5,242.79/x
  3. Step 3: Cross multiply
    8,830.27x = 12,180.36 × 5,242.79
  4. Step 4: Simplify right side
    8,830.27x = 63,859,021.71
  5. Step 5: Solve for x
    x = 63,859,021.71/8,830.27
  6. Step 6: Final answer
    x = 7,231.83

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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.