Home / 12,411.32-18,612.97-4,089.35

Finding the Fourth Proportional to 12,411.32, 18,612.97 and 4,089.35

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Solution

The fourth proportional to 12,411.32, 18,612.97 and 4,089.35 is: 6,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.32 : 18,612.97 = 4,089.35 : x
  2. Step 2: Convert to fraction form
    12,411.32/18,612.97 = 4,089.35/x
  3. Step 3: Cross multiply
    12,411.32x = 18,612.97 × 4,089.35
  4. Step 4: Simplify right side
    12,411.32x = 76,114,985.18
  5. Step 5: Solve for x
    x = 76,114,985.18/12,411.32
  6. Step 6: Final answer
    x = 6,132.71

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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.