Home / 8,942.74-12,341.24-4,909.75

Finding the Fourth Proportional to 8,942.74, 12,341.24 and 4,909.75

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Solution

The fourth proportional to 8,942.74, 12,341.24 and 4,909.75 is: 6,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.74 : 12,341.24 = 4,909.75 : x
  2. Step 2: Convert to fraction form
    8,942.74/12,341.24 = 4,909.75/x
  3. Step 3: Cross multiply
    8,942.74x = 12,341.24 × 4,909.75
  4. Step 4: Simplify right side
    8,942.74x = 60,592,403.09
  5. Step 5: Solve for x
    x = 60,592,403.09/8,942.74
  6. Step 6: Final answer
    x = 6,775.60

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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.