Home / 12,264.40-18,405.92-8,986.06

Finding the Fourth Proportional to 12,264.40, 18,405.92 and 8,986.06

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Solution

The fourth proportional to 12,264.40, 18,405.92 and 8,986.06 is: 13,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,264.40 : 18,405.92 = 8,986.06 : x
  2. Step 2: Convert to fraction form
    12,264.40/18,405.92 = 8,986.06/x
  3. Step 3: Cross multiply
    12,264.40x = 18,405.92 × 8,986.06
  4. Step 4: Simplify right side
    12,264.40x = 165,396,701.48
  5. Step 5: Solve for x
    x = 165,396,701.48/12,264.40
  6. Step 6: Final answer
    x = 13,485.92

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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.