Home / 13,966.04-20,947.98-8,118.92

Finding the Fourth Proportional to 13,966.04, 20,947.98 and 8,118.92

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Solution

The fourth proportional to 13,966.04, 20,947.98 and 8,118.92 is: 12,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.04 : 20,947.98 = 8,118.92 : x
  2. Step 2: Convert to fraction form
    13,966.04/20,947.98 = 8,118.92/x
  3. Step 3: Cross multiply
    13,966.04x = 20,947.98 × 8,118.92
  4. Step 4: Simplify right side
    13,966.04x = 170,074,973.78
  5. Step 5: Solve for x
    x = 170,074,973.78/13,966.04
  6. Step 6: Final answer
    x = 12,177.75

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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.