Home / 18,546.48-25,579.98-12,881.16

Finding the Fourth Proportional to 18,546.48, 25,579.98 and 12,881.16

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Solution

The fourth proportional to 18,546.48, 25,579.98 and 12,881.16 is: 17,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,546.48 : 25,579.98 = 12,881.16 : x
  2. Step 2: Convert to fraction form
    18,546.48/25,579.98 = 12,881.16/x
  3. Step 3: Cross multiply
    18,546.48x = 25,579.98 × 12,881.16
  4. Step 4: Simplify right side
    18,546.48x = 329,499,815.18
  5. Step 5: Solve for x
    x = 329,499,815.18/18,546.48
  6. Step 6: Final answer
    x = 17,766.16

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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.