Home / 18,287.60-27,431.40-5,975.60

Finding the Fourth Proportional to 18,287.60, 27,431.40 and 5,975.60

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Solution

The fourth proportional to 18,287.60, 27,431.40 and 5,975.60 is: 8,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.60 : 27,431.40 = 5,975.60 : x
  2. Step 2: Convert to fraction form
    18,287.60/27,431.40 = 5,975.60/x
  3. Step 3: Cross multiply
    18,287.60x = 27,431.40 × 5,975.60
  4. Step 4: Simplify right side
    18,287.60x = 163,919,073.84
  5. Step 5: Solve for x
    x = 163,919,073.84/18,287.60
  6. Step 6: Final answer
    x = 8,963.40

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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.