Home / 17,987.28-26,962.66-8,613.55

Finding the Fourth Proportional to 17,987.28, 26,962.66 and 8,613.55

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Solution

The fourth proportional to 17,987.28, 26,962.66 and 8,613.55 is: 12,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.28 : 26,962.66 = 8,613.55 : x
  2. Step 2: Convert to fraction form
    17,987.28/26,962.66 = 8,613.55/x
  3. Step 3: Cross multiply
    17,987.28x = 26,962.66 × 8,613.55
  4. Step 4: Simplify right side
    17,987.28x = 232,244,220.04
  5. Step 5: Solve for x
    x = 232,244,220.04/17,987.28
  6. Step 6: Final answer
    x = 12,911.58

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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.