Home / 14,134.80-21,202.20-8,288.40

Finding the Fourth Proportional to 14,134.80, 21,202.20 and 8,288.40

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Solution

The fourth proportional to 14,134.80, 21,202.20 and 8,288.40 is: 12,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.80 : 21,202.20 = 8,288.40 : x
  2. Step 2: Convert to fraction form
    14,134.80/21,202.20 = 8,288.40/x
  3. Step 3: Cross multiply
    14,134.80x = 21,202.20 × 8,288.40
  4. Step 4: Simplify right side
    14,134.80x = 175,732,314.48
  5. Step 5: Solve for x
    x = 175,732,314.48/14,134.80
  6. Step 6: Final answer
    x = 12,432.60

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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.