Home / 17,968.40-26,962.20-8,109.20

Finding the Fourth Proportional to 17,968.40, 26,962.20 and 8,109.20

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Solution

The fourth proportional to 17,968.40, 26,962.20 and 8,109.20 is: 12,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,968.40 : 26,962.20 = 8,109.20 : x
  2. Step 2: Convert to fraction form
    17,968.40/26,962.20 = 8,109.20/x
  3. Step 3: Cross multiply
    17,968.40x = 26,962.20 × 8,109.20
  4. Step 4: Simplify right side
    17,968.40x = 218,641,872.24
  5. Step 5: Solve for x
    x = 218,641,872.24/17,968.40
  6. Step 6: Final answer
    x = 12,168.13

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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.