Home / 11,005.46-15,178.29-7,225.73

Finding the Fourth Proportional to 11,005.46, 15,178.29 and 7,225.73

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Solution

The fourth proportional to 11,005.46, 15,178.29 and 7,225.73 is: 9,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.46 : 15,178.29 = 7,225.73 : x
  2. Step 2: Convert to fraction form
    11,005.46/15,178.29 = 7,225.73/x
  3. Step 3: Cross multiply
    11,005.46x = 15,178.29 × 7,225.73
  4. Step 4: Simplify right side
    11,005.46x = 109,674,214.55
  5. Step 5: Solve for x
    x = 109,674,214.55/11,005.46
  6. Step 6: Final answer
    x = 9,965.44

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