Home / 14,437.20-21,639.60-8,200.20

Finding the Fourth Proportional to 14,437.20, 21,639.60 and 8,200.20

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Solution

The fourth proportional to 14,437.20, 21,639.60 and 8,200.20 is: 12,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.20 : 21,639.60 = 8,200.20 : x
  2. Step 2: Convert to fraction form
    14,437.20/21,639.60 = 8,200.20/x
  3. Step 3: Cross multiply
    14,437.20x = 21,639.60 × 8,200.20
  4. Step 4: Simplify right side
    14,437.20x = 177,449,047.92
  5. Step 5: Solve for x
    x = 177,449,047.92/14,437.20
  6. Step 6: Final answer
    x = 12,291.10

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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.