Home / 11,236.48-15,520.08-7,711.36

Finding the Fourth Proportional to 11,236.48, 15,520.08 and 7,711.36

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Solution

The fourth proportional to 11,236.48, 15,520.08 and 7,711.36 is: 10,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.48 : 15,520.08 = 7,711.36 : x
  2. Step 2: Convert to fraction form
    11,236.48/15,520.08 = 7,711.36/x
  3. Step 3: Cross multiply
    11,236.48x = 15,520.08 × 7,711.36
  4. Step 4: Simplify right side
    11,236.48x = 119,680,924.11
  5. Step 5: Solve for x
    x = 119,680,924.11/11,236.48
  6. Step 6: Final answer
    x = 10,651.10

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Double scale
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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.