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Finding the Fourth Proportional to 12,484.17, 17,223.17 and 11,120.76

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Solution

The fourth proportional to 12,484.17, 17,223.17 and 11,120.76 is: 15,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.17 : 17,223.17 = 11,120.76 : x
  2. Step 2: Convert to fraction form
    12,484.17/17,223.17 = 11,120.76/x
  3. Step 3: Cross multiply
    12,484.17x = 17,223.17 × 11,120.76
  4. Step 4: Simplify right side
    12,484.17x = 191,534,684.41
  5. Step 5: Solve for x
    x = 191,534,684.41/12,484.17
  6. Step 6: Final answer
    x = 15,342.20

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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.