Home / 8,077.58-11,147.12-4,720.53

Finding the Fourth Proportional to 8,077.58, 11,147.12 and 4,720.53

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Solution

The fourth proportional to 8,077.58, 11,147.12 and 4,720.53 is: 6,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.58 : 11,147.12 = 4,720.53 : x
  2. Step 2: Convert to fraction form
    8,077.58/11,147.12 = 4,720.53/x
  3. Step 3: Cross multiply
    8,077.58x = 11,147.12 × 4,720.53
  4. Step 4: Simplify right side
    8,077.58x = 52,620,314.37
  5. Step 5: Solve for x
    x = 52,620,314.37/8,077.58
  6. Step 6: Final answer
    x = 6,514.37

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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.