Home / 7,490.72-11,236.08-4,206.88

Finding the Fourth Proportional to 7,490.72, 11,236.08 and 4,206.88

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Solution

The fourth proportional to 7,490.72, 11,236.08 and 4,206.88 is: 6,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.72 : 11,236.08 = 4,206.88 : x
  2. Step 2: Convert to fraction form
    7,490.72/11,236.08 = 4,206.88/x
  3. Step 3: Cross multiply
    7,490.72x = 11,236.08 × 4,206.88
  4. Step 4: Simplify right side
    7,490.72x = 47,268,840.23
  5. Step 5: Solve for x
    x = 47,268,840.23/7,490.72
  6. Step 6: Final answer
    x = 6,310.32

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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.