Home / 8,605.85-11,876.13-5,619.92

Finding the Fourth Proportional to 8,605.85, 11,876.13 and 5,619.92

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Solution

The fourth proportional to 8,605.85, 11,876.13 and 5,619.92 is: 7,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.85 : 11,876.13 = 5,619.92 : x
  2. Step 2: Convert to fraction form
    8,605.85/11,876.13 = 5,619.92/x
  3. Step 3: Cross multiply
    8,605.85x = 11,876.13 × 5,619.92
  4. Step 4: Simplify right side
    8,605.85x = 66,742,841.13
  5. Step 5: Solve for x
    x = 66,742,841.13/8,605.85
  6. Step 6: Final answer
    x = 7,755.52

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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.