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Finding the Fourth Proportional to 8,948.42, 12,348.98 and 4,969.90

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Solution

The fourth proportional to 8,948.42, 12,348.98 and 4,969.90 is: 6,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.42 : 12,348.98 = 4,969.90 : x
  2. Step 2: Convert to fraction form
    8,948.42/12,348.98 = 4,969.90/x
  3. Step 3: Cross multiply
    8,948.42x = 12,348.98 × 4,969.90
  4. Step 4: Simplify right side
    8,948.42x = 61,373,177.25
  5. Step 5: Solve for x
    x = 61,373,177.25/8,948.42
  6. Step 6: Final answer
    x = 6,858.55

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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.