Home / 7,431.12-11,146.32-4,508.64

Finding the Fourth Proportional to 7,431.12, 11,146.32 and 4,508.64

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Solution

The fourth proportional to 7,431.12, 11,146.32 and 4,508.64 is: 6,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.12 : 11,146.32 = 4,508.64 : x
  2. Step 2: Convert to fraction form
    7,431.12/11,146.32 = 4,508.64/x
  3. Step 3: Cross multiply
    7,431.12x = 11,146.32 × 4,508.64
  4. Step 4: Simplify right side
    7,431.12x = 50,254,744.20
  5. Step 5: Solve for x
    x = 50,254,744.20/7,431.12
  6. Step 6: Final answer
    x = 6,762.74

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.