Home / 8,958.08-12,358.49-6,120.90

Finding the Fourth Proportional to 8,958.08, 12,358.49 and 6,120.90

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Solution

The fourth proportional to 8,958.08, 12,358.49 and 6,120.90 is: 8,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.08 : 12,358.49 = 6,120.90 : x
  2. Step 2: Convert to fraction form
    8,958.08/12,358.49 = 6,120.90/x
  3. Step 3: Cross multiply
    8,958.08x = 12,358.49 × 6,120.90
  4. Step 4: Simplify right side
    8,958.08x = 75,645,050.84
  5. Step 5: Solve for x
    x = 75,645,050.84/8,958.08
  6. Step 6: Final answer
    x = 8,444.34

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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.