Home / 13,614.35-18,787.82-7,647.93

Finding the Fourth Proportional to 13,614.35, 18,787.82 and 7,647.93

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Solution

The fourth proportional to 13,614.35, 18,787.82 and 7,647.93 is: 10,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.35 : 18,787.82 = 7,647.93 : x
  2. Step 2: Convert to fraction form
    13,614.35/18,787.82 = 7,647.93/x
  3. Step 3: Cross multiply
    13,614.35x = 18,787.82 × 7,647.93
  4. Step 4: Simplify right side
    13,614.35x = 143,687,893.97
  5. Step 5: Solve for x
    x = 143,687,893.97/13,614.35
  6. Step 6: Final answer
    x = 10,554.15

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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.