Home / 8,948.40-13,422.76-3,105.16

Finding the Fourth Proportional to 8,948.40, 13,422.76 and 3,105.16

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Solution

The fourth proportional to 8,948.40, 13,422.76 and 3,105.16 is: 4,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.40 : 13,422.76 = 3,105.16 : x
  2. Step 2: Convert to fraction form
    8,948.40/13,422.76 = 3,105.16/x
  3. Step 3: Cross multiply
    8,948.40x = 13,422.76 × 3,105.16
  4. Step 4: Simplify right side
    8,948.40x = 41,679,817.44
  5. Step 5: Solve for x
    x = 41,679,817.44/8,948.40
  6. Step 6: Final answer
    x = 4,657.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.