Home / 8,947.80-12,348.30-4,968.90

Finding the Fourth Proportional to 8,947.80, 12,348.30 and 4,968.90

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Solution

The fourth proportional to 8,947.80, 12,348.30 and 4,968.90 is: 6,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.80 : 12,348.30 = 4,968.90 : x
  2. Step 2: Convert to fraction form
    8,947.80/12,348.30 = 4,968.90/x
  3. Step 3: Cross multiply
    8,947.80x = 12,348.30 × 4,968.90
  4. Step 4: Simplify right side
    8,947.80x = 61,357,467.87
  5. Step 5: Solve for x
    x = 61,357,467.87/8,947.80
  6. Step 6: Final answer
    x = 6,857.27

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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.