Home / 14,724.92-20,320.78-8,759.80

Finding the Fourth Proportional to 14,724.92, 20,320.78 and 8,759.80

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Solution

The fourth proportional to 14,724.92, 20,320.78 and 8,759.80 is: 12,088.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.92 : 20,320.78 = 8,759.80 : x
  2. Step 2: Convert to fraction form
    14,724.92/20,320.78 = 8,759.80/x
  3. Step 3: Cross multiply
    14,724.92x = 20,320.78 × 8,759.80
  4. Step 4: Simplify right side
    14,724.92x = 178,005,968.64
  5. Step 5: Solve for x
    x = 178,005,968.64/14,724.92
  6. Step 6: Final answer
    x = 12,088.76

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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.