Home / 8,438.32-12,658.88-4,055.68

Finding the Fourth Proportional to 8,438.32, 12,658.88 and 4,055.68

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Solution

The fourth proportional to 8,438.32, 12,658.88 and 4,055.68 is: 6,084.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.32 : 12,658.88 = 4,055.68 : x
  2. Step 2: Convert to fraction form
    8,438.32/12,658.88 = 4,055.68/x
  3. Step 3: Cross multiply
    8,438.32x = 12,658.88 × 4,055.68
  4. Step 4: Simplify right side
    8,438.32x = 51,340,366.44
  5. Step 5: Solve for x
    x = 51,340,366.44/8,438.32
  6. Step 6: Final answer
    x = 6,084.19

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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.