Home / 18,612.34-25,673.50-12,239.66

Finding the Fourth Proportional to 18,612.34, 25,673.50 and 12,239.66

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Solution

The fourth proportional to 18,612.34, 25,673.50 and 12,239.66 is: 16,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.34 : 25,673.50 = 12,239.66 : x
  2. Step 2: Convert to fraction form
    18,612.34/25,673.50 = 12,239.66/x
  3. Step 3: Cross multiply
    18,612.34x = 25,673.50 × 12,239.66
  4. Step 4: Simplify right side
    18,612.34x = 314,234,911.01
  5. Step 5: Solve for x
    x = 314,234,911.01/18,612.34
  6. Step 6: Final answer
    x = 16,883.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.