Home / 12,268.10-18,402.15-8,812.10

Finding the Fourth Proportional to 12,268.10, 18,402.15 and 8,812.10

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Solution

The fourth proportional to 12,268.10, 18,402.15 and 8,812.10 is: 13,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.10 : 18,402.15 = 8,812.10 : x
  2. Step 2: Convert to fraction form
    12,268.10/18,402.15 = 8,812.10/x
  3. Step 3: Cross multiply
    12,268.10x = 18,402.15 × 8,812.10
  4. Step 4: Simplify right side
    12,268.10x = 162,161,586.02
  5. Step 5: Solve for x
    x = 162,161,586.02/12,268.10
  6. Step 6: Final answer
    x = 13,218.15

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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.