Home / 13,787.87-20,663.57-5,014.35

Finding the Fourth Proportional to 13,787.87, 20,663.57 and 5,014.35

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Solution

The fourth proportional to 13,787.87, 20,663.57 and 5,014.35 is: 7,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.87 : 20,663.57 = 5,014.35 : x
  2. Step 2: Convert to fraction form
    13,787.87/20,663.57 = 5,014.35/x
  3. Step 3: Cross multiply
    13,787.87x = 20,663.57 × 5,014.35
  4. Step 4: Simplify right side
    13,787.87x = 103,614,347.16
  5. Step 5: Solve for x
    x = 103,614,347.16/13,787.87
  6. Step 6: Final answer
    x = 7,514.89

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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.