Home / 12,515.60-18,773.40-7,266.80

Finding the Fourth Proportional to 12,515.60, 18,773.40 and 7,266.80

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Solution

The fourth proportional to 12,515.60, 18,773.40 and 7,266.80 is: 10,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.60 : 18,773.40 = 7,266.80 : x
  2. Step 2: Convert to fraction form
    12,515.60/18,773.40 = 7,266.80/x
  3. Step 3: Cross multiply
    12,515.60x = 18,773.40 × 7,266.80
  4. Step 4: Simplify right side
    12,515.60x = 136,422,543.12
  5. Step 5: Solve for x
    x = 136,422,543.12/12,515.60
  6. Step 6: Final answer
    x = 10,900.20

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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.