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Finding the Fourth Proportional to 12,666.88, 19,001.58 and 10,348.84

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Solution

The fourth proportional to 12,666.88, 19,001.58 and 10,348.84 is: 15,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.88 : 19,001.58 = 10,348.84 : x
  2. Step 2: Convert to fraction form
    12,666.88/19,001.58 = 10,348.84/x
  3. Step 3: Cross multiply
    12,666.88x = 19,001.58 × 10,348.84
  4. Step 4: Simplify right side
    12,666.88x = 196,644,311.17
  5. Step 5: Solve for x
    x = 196,644,311.17/12,666.88
  6. Step 6: Final answer
    x = 15,524.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.