Home / 12,411.09-18,612.68-4,089.24

Finding the Fourth Proportional to 12,411.09, 18,612.68 and 4,089.24

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Solution

The fourth proportional to 12,411.09, 18,612.68 and 4,089.24 is: 6,132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.09 : 18,612.68 = 4,089.24 : x
  2. Step 2: Convert to fraction form
    12,411.09/18,612.68 = 4,089.24/x
  3. Step 3: Cross multiply
    12,411.09x = 18,612.68 × 4,089.24
  4. Step 4: Simplify right side
    12,411.09x = 76,111,695.12
  5. Step 5: Solve for x
    x = 76,111,695.12/12,411.09
  6. Step 6: Final answer
    x = 6,132.56

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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.