Home / 8,880.56-12,240.42-6,358.68

Finding the Fourth Proportional to 8,880.56, 12,240.42 and 6,358.68

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Solution

The fourth proportional to 8,880.56, 12,240.42 and 6,358.68 is: 8,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.56 : 12,240.42 = 6,358.68 : x
  2. Step 2: Convert to fraction form
    8,880.56/12,240.42 = 6,358.68/x
  3. Step 3: Cross multiply
    8,880.56x = 12,240.42 × 6,358.68
  4. Step 4: Simplify right side
    8,880.56x = 77,832,913.85
  5. Step 5: Solve for x
    x = 77,832,913.85/8,880.56
  6. Step 6: Final answer
    x = 8,764.42

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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.