Home / 13,872.56-20,808.98-4,011.92

Finding the Fourth Proportional to 13,872.56, 20,808.98 and 4,011.92

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Solution

The fourth proportional to 13,872.56, 20,808.98 and 4,011.92 is: 6,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.56 : 20,808.98 = 4,011.92 : x
  2. Step 2: Convert to fraction form
    13,872.56/20,808.98 = 4,011.92/x
  3. Step 3: Cross multiply
    13,872.56x = 20,808.98 × 4,011.92
  4. Step 4: Simplify right side
    13,872.56x = 83,483,963.04
  5. Step 5: Solve for x
    x = 83,483,963.04/13,872.56
  6. Step 6: Final answer
    x = 6,017.92

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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.