Home / 8,750.13-13,117.75-4,072.85

Finding the Fourth Proportional to 8,750.13, 13,117.75 and 4,072.85

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Solution

The fourth proportional to 8,750.13, 13,117.75 and 4,072.85 is: 6,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.13 : 13,117.75 = 4,072.85 : x
  2. Step 2: Convert to fraction form
    8,750.13/13,117.75 = 4,072.85/x
  3. Step 3: Cross multiply
    8,750.13x = 13,117.75 × 4,072.85
  4. Step 4: Simplify right side
    8,750.13x = 53,426,542.13
  5. Step 5: Solve for x
    x = 53,426,542.13/8,750.13
  6. Step 6: Final answer
    x = 6,105.80

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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.