Home / 11,285.96-15,576.10-6,812.24

Finding the Fourth Proportional to 11,285.96, 15,576.10 and 6,812.24

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Solution

The fourth proportional to 11,285.96, 15,576.10 and 6,812.24 is: 9,401.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.96 : 15,576.10 = 6,812.24 : x
  2. Step 2: Convert to fraction form
    11,285.96/15,576.10 = 6,812.24/x
  3. Step 3: Cross multiply
    11,285.96x = 15,576.10 × 6,812.24
  4. Step 4: Simplify right side
    11,285.96x = 106,108,131.46
  5. Step 5: Solve for x
    x = 106,108,131.46/11,285.96
  6. Step 6: Final answer
    x = 9,401.78

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Half scale
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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.