Home / 8,845.49-13,250.86-5,139.95

Finding the Fourth Proportional to 8,845.49, 13,250.86 and 5,139.95

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Solution

The fourth proportional to 8,845.49, 13,250.86 and 5,139.95 is: 7,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.49 : 13,250.86 = 5,139.95 : x
  2. Step 2: Convert to fraction form
    8,845.49/13,250.86 = 5,139.95/x
  3. Step 3: Cross multiply
    8,845.49x = 13,250.86 × 5,139.95
  4. Step 4: Simplify right side
    8,845.49x = 68,108,678.75
  5. Step 5: Solve for x
    x = 68,108,678.75/8,845.49
  6. Step 6: Final answer
    x = 7,699.82

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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.