Home / 11,000.57-15,176.80-7,225.78

Finding the Fourth Proportional to 11,000.57, 15,176.80 and 7,225.78

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Solution

The fourth proportional to 11,000.57, 15,176.80 and 7,225.78 is: 9,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.57 : 15,176.80 = 7,225.78 : x
  2. Step 2: Convert to fraction form
    11,000.57/15,176.80 = 7,225.78/x
  3. Step 3: Cross multiply
    11,000.57x = 15,176.80 × 7,225.78
  4. Step 4: Simplify right side
    11,000.57x = 109,664,217.90
  5. Step 5: Solve for x
    x = 109,664,217.90/11,000.57
  6. Step 6: Final answer
    x = 9,968.96

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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.