Home / 11,001.60-15,178.22-7,226.80

Finding the Fourth Proportional to 11,001.60, 15,178.22 and 7,226.80

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Solution

The fourth proportional to 11,001.60, 15,178.22 and 7,226.80 is: 9,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.60 : 15,178.22 = 7,226.80 : x
  2. Step 2: Convert to fraction form
    11,001.60/15,178.22 = 7,226.80/x
  3. Step 3: Cross multiply
    11,001.60x = 15,178.22 × 7,226.80
  4. Step 4: Simplify right side
    11,001.60x = 109,689,960.30
  5. Step 5: Solve for x
    x = 109,689,960.30/11,001.60
  6. Step 6: Final answer
    x = 9,970.36

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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.