Home / 8,856.02-12,221.35-5,319.29

Finding the Fourth Proportional to 8,856.02, 12,221.35 and 5,319.29

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Solution

The fourth proportional to 8,856.02, 12,221.35 and 5,319.29 is: 7,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.02 : 12,221.35 = 5,319.29 : x
  2. Step 2: Convert to fraction form
    8,856.02/12,221.35 = 5,319.29/x
  3. Step 3: Cross multiply
    8,856.02x = 12,221.35 × 5,319.29
  4. Step 4: Simplify right side
    8,856.02x = 65,008,922.10
  5. Step 5: Solve for x
    x = 65,008,922.10/8,856.02
  6. Step 6: Final answer
    x = 7,340.65

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Half scale
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Double scale
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Similar ratio
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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.