Home / 7,633.12-11,449.68-7,225.60

Finding the Fourth Proportional to 7,633.12, 11,449.68 and 7,225.60

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Solution

The fourth proportional to 7,633.12, 11,449.68 and 7,225.60 is: 10,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,633.12 : 11,449.68 = 7,225.60 : x
  2. Step 2: Convert to fraction form
    7,633.12/11,449.68 = 7,225.60/x
  3. Step 3: Cross multiply
    7,633.12x = 11,449.68 × 7,225.60
  4. Step 4: Simplify right side
    7,633.12x = 82,730,807.81
  5. Step 5: Solve for x
    x = 82,730,807.81/7,633.12
  6. Step 6: Final answer
    x = 10,838.40

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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.