Home / 10,257.60-15,348.80-8,887.04

Finding the Fourth Proportional to 10,257.60, 15,348.80 and 8,887.04

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Solution

The fourth proportional to 10,257.60, 15,348.80 and 8,887.04 is: 13,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.60 : 15,348.80 = 8,887.04 : x
  2. Step 2: Convert to fraction form
    10,257.60/15,348.80 = 8,887.04/x
  3. Step 3: Cross multiply
    10,257.60x = 15,348.80 × 8,887.04
  4. Step 4: Simplify right side
    10,257.60x = 136,405,399.55
  5. Step 5: Solve for x
    x = 136,405,399.55/10,257.60
  6. Step 6: Final answer
    x = 13,297.98

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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.