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Finding the Fourth Proportional to 17,997.78, 24,836.76 and 9,931.50

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Solution

The fourth proportional to 17,997.78, 24,836.76 and 9,931.50 is: 13,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,997.78 : 24,836.76 = 9,931.50 : x
  2. Step 2: Convert to fraction form
    17,997.78/24,836.76 = 9,931.50/x
  3. Step 3: Cross multiply
    17,997.78x = 24,836.76 × 9,931.50
  4. Step 4: Simplify right side
    17,997.78x = 246,666,281.94
  5. Step 5: Solve for x
    x = 246,666,281.94/17,997.78
  6. Step 6: Final answer
    x = 13,705.37

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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.