Home / 18,084.60-27,159.30-13,159.80

Finding the Fourth Proportional to 18,084.60, 27,159.30 and 13,159.80

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Solution

The fourth proportional to 18,084.60, 27,159.30 and 13,159.80 is: 19,763.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084.60 : 27,159.30 = 13,159.80 : x
  2. Step 2: Convert to fraction form
    18,084.60/27,159.30 = 13,159.80/x
  3. Step 3: Cross multiply
    18,084.60x = 27,159.30 × 13,159.80
  4. Step 4: Simplify right side
    18,084.60x = 357,410,956.14
  5. Step 5: Solve for x
    x = 357,410,956.14/18,084.60
  6. Step 6: Final answer
    x = 19,763.28

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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.