Home / 8,910.92-12,296-4,931.80

Finding the Fourth Proportional to 8,910.92, 12,296 and 4,931.80

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Solution

The fourth proportional to 8,910.92, 12,296 and 4,931.80 is: 6,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.92 : 12,296 = 4,931.80 : x
  2. Step 2: Convert to fraction form
    8,910.92/12,296 = 4,931.80/x
  3. Step 3: Cross multiply
    8,910.92x = 12,296 × 4,931.80
  4. Step 4: Simplify right side
    8,910.92x = 60,641,412.80
  5. Step 5: Solve for x
    x = 60,641,412.80/8,910.92
  6. Step 6: Final answer
    x = 6,805.29

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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.