Home / 11,431.24-15,775.56-6,715.48

Finding the Fourth Proportional to 11,431.24, 15,775.56 and 6,715.48

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Solution

The fourth proportional to 11,431.24, 15,775.56 and 6,715.48 is: 9,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.24 : 15,775.56 = 6,715.48 : x
  2. Step 2: Convert to fraction form
    11,431.24/15,775.56 = 6,715.48/x
  3. Step 3: Cross multiply
    11,431.24x = 15,775.56 × 6,715.48
  4. Step 4: Simplify right side
    11,431.24x = 105,940,457.67
  5. Step 5: Solve for x
    x = 105,940,457.67/11,431.24
  6. Step 6: Final answer
    x = 9,267.63

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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.