Home / 12,266.60-18,409.20-8,988.26

Finding the Fourth Proportional to 12,266.60, 18,409.20 and 8,988.26

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Solution

The fourth proportional to 12,266.60, 18,409.20 and 8,988.26 is: 13,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.60 : 18,409.20 = 8,988.26 : x
  2. Step 2: Convert to fraction form
    12,266.60/18,409.20 = 8,988.26/x
  3. Step 3: Cross multiply
    12,266.60x = 18,409.20 × 8,988.26
  4. Step 4: Simplify right side
    12,266.60x = 165,466,583.95
  5. Step 5: Solve for x
    x = 165,466,583.95/12,266.60
  6. Step 6: Final answer
    x = 13,489.20

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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.