Home / 18,308.25-27,478.35-8,955.18

Finding the Fourth Proportional to 18,308.25, 27,478.35 and 8,955.18

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Solution

The fourth proportional to 18,308.25, 27,478.35 and 8,955.18 is: 13,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.25 : 27,478.35 = 8,955.18 : x
  2. Step 2: Convert to fraction form
    18,308.25/27,478.35 = 8,955.18/x
  3. Step 3: Cross multiply
    18,308.25x = 27,478.35 × 8,955.18
  4. Step 4: Simplify right side
    18,308.25x = 246,073,570.35
  5. Step 5: Solve for x
    x = 246,073,570.35/18,308.25
  6. Step 6: Final answer
    x = 13,440.58

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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.