Home / 12,787.14-19,191.70-5,001.42

Finding the Fourth Proportional to 12,787.14, 19,191.70 and 5,001.42

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Solution

The fourth proportional to 12,787.14, 19,191.70 and 5,001.42 is: 7,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.14 : 19,191.70 = 5,001.42 : x
  2. Step 2: Convert to fraction form
    12,787.14/19,191.70 = 5,001.42/x
  3. Step 3: Cross multiply
    12,787.14x = 19,191.70 × 5,001.42
  4. Step 4: Simplify right side
    12,787.14x = 95,985,752.21
  5. Step 5: Solve for x
    x = 95,985,752.21/12,787.14
  6. Step 6: Final answer
    x = 7,506.43

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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.