Home / 11,952.20-16,468.50-8,803.40

Finding the Fourth Proportional to 11,952.20, 16,468.50 and 8,803.40

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Solution

The fourth proportional to 11,952.20, 16,468.50 and 8,803.40 is: 12,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.20 : 16,468.50 = 8,803.40 : x
  2. Step 2: Convert to fraction form
    11,952.20/16,468.50 = 8,803.40/x
  3. Step 3: Cross multiply
    11,952.20x = 16,468.50 × 8,803.40
  4. Step 4: Simplify right side
    11,952.20x = 144,978,792.90
  5. Step 5: Solve for x
    x = 144,978,792.90/11,952.20
  6. Step 6: Final answer
    x = 12,129.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.