Home / 8,660.04-12,991.68-2,818.32

Finding the Fourth Proportional to 8,660.04, 12,991.68 and 2,818.32

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Solution

The fourth proportional to 8,660.04, 12,991.68 and 2,818.32 is: 4,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.04 : 12,991.68 = 2,818.32 : x
  2. Step 2: Convert to fraction form
    8,660.04/12,991.68 = 2,818.32/x
  3. Step 3: Cross multiply
    8,660.04x = 12,991.68 × 2,818.32
  4. Step 4: Simplify right side
    8,660.04x = 36,614,711.58
  5. Step 5: Solve for x
    x = 36,614,711.58/8,660.04
  6. Step 6: Final answer
    x = 4,228.01

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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.