Home / 8,340.42-12,516.81-6,716.58

Finding the Fourth Proportional to 8,340.42, 12,516.81 and 6,716.58

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Solution

The fourth proportional to 8,340.42, 12,516.81 and 6,716.58 is: 10,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.42 : 12,516.81 = 6,716.58 : x
  2. Step 2: Convert to fraction form
    8,340.42/12,516.81 = 6,716.58/x
  3. Step 3: Cross multiply
    8,340.42x = 12,516.81 × 6,716.58
  4. Step 4: Simplify right side
    8,340.42x = 84,070,155.71
  5. Step 5: Solve for x
    x = 84,070,155.71/8,340.42
  6. Step 6: Final answer
    x = 10,079.85

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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.