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Finding the Fourth Proportional to 15,750.72, 21,736.01 and 8,677.13

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Solution

The fourth proportional to 15,750.72, 21,736.01 and 8,677.13 is: 11,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.72 : 21,736.01 = 8,677.13 : x
  2. Step 2: Convert to fraction form
    15,750.72/21,736.01 = 8,677.13/x
  3. Step 3: Cross multiply
    15,750.72x = 21,736.01 × 8,677.13
  4. Step 4: Simplify right side
    15,750.72x = 188,606,097.46
  5. Step 5: Solve for x
    x = 188,606,097.46/15,750.72
  6. Step 6: Final answer
    x = 11,974.44

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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.