Home / 11,143.52-15,363.36-7,994.24

Finding the Fourth Proportional to 11,143.52, 15,363.36 and 7,994.24

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Solution

The fourth proportional to 11,143.52, 15,363.36 and 7,994.24 is: 11,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.52 : 15,363.36 = 7,994.24 : x
  2. Step 2: Convert to fraction form
    11,143.52/15,363.36 = 7,994.24/x
  3. Step 3: Cross multiply
    11,143.52x = 15,363.36 × 7,994.24
  4. Step 4: Simplify right side
    11,143.52x = 122,818,387.05
  5. Step 5: Solve for x
    x = 122,818,387.05/11,143.52
  6. Step 6: Final answer
    x = 11,021.51

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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.