Home / 8,442.77-11,654.13-5,085.72

Finding the Fourth Proportional to 8,442.77, 11,654.13 and 5,085.72

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Solution

The fourth proportional to 8,442.77, 11,654.13 and 5,085.72 is: 7,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442.77 : 11,654.13 = 5,085.72 : x
  2. Step 2: Convert to fraction form
    8,442.77/11,654.13 = 5,085.72/x
  3. Step 3: Cross multiply
    8,442.77x = 11,654.13 × 5,085.72
  4. Step 4: Simplify right side
    8,442.77x = 59,269,642.02
  5. Step 5: Solve for x
    x = 59,269,642.02/8,442.77
  6. Step 6: Final answer
    x = 7,020.17

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Half scale
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Double scale
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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.