Home / 8,947.72-12,348.08-4,968.80

Finding the Fourth Proportional to 8,947.72, 12,348.08 and 4,968.80

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Solution

The fourth proportional to 8,947.72, 12,348.08 and 4,968.80 is: 6,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.72 : 12,348.08 = 4,968.80 : x
  2. Step 2: Convert to fraction form
    8,947.72/12,348.08 = 4,968.80/x
  3. Step 3: Cross multiply
    8,947.72x = 12,348.08 × 4,968.80
  4. Step 4: Simplify right side
    8,947.72x = 61,355,139.90
  5. Step 5: Solve for x
    x = 61,355,139.90/8,947.72
  6. Step 6: Final answer
    x = 6,857.07

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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.