Home / 11,872.60-16,384.35-7,398.16

Finding the Fourth Proportional to 11,872.60, 16,384.35 and 7,398.16

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Solution

The fourth proportional to 11,872.60, 16,384.35 and 7,398.16 is: 10,209.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.60 : 16,384.35 = 7,398.16 : x
  2. Step 2: Convert to fraction form
    11,872.60/16,384.35 = 7,398.16/x
  3. Step 3: Cross multiply
    11,872.60x = 16,384.35 × 7,398.16
  4. Step 4: Simplify right side
    11,872.60x = 121,214,042.80
  5. Step 5: Solve for x
    x = 121,214,042.80/11,872.60
  6. Step 6: Final answer
    x = 10,209.56

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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.