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Finding the Fourth Proportional to 11,554.88, 15,945.78 and 6,518.92

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Solution

The fourth proportional to 11,554.88, 15,945.78 and 6,518.92 is: 8,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,554.88 : 15,945.78 = 6,518.92 : x
  2. Step 2: Convert to fraction form
    11,554.88/15,945.78 = 6,518.92/x
  3. Step 3: Cross multiply
    11,554.88x = 15,945.78 × 6,518.92
  4. Step 4: Simplify right side
    11,554.88x = 103,949,264.16
  5. Step 5: Solve for x
    x = 103,949,264.16/11,554.88
  6. Step 6: Final answer
    x = 8,996.14

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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.