Home / 17,987.76-26,963.40-6,891.60

Finding the Fourth Proportional to 17,987.76, 26,963.40 and 6,891.60

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Solution

The fourth proportional to 17,987.76, 26,963.40 and 6,891.60 is: 10,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.76 : 26,963.40 = 6,891.60 : x
  2. Step 2: Convert to fraction form
    17,987.76/26,963.40 = 6,891.60/x
  3. Step 3: Cross multiply
    17,987.76x = 26,963.40 × 6,891.60
  4. Step 4: Simplify right side
    17,987.76x = 185,820,967.44
  5. Step 5: Solve for x
    x = 185,820,967.44/17,987.76
  6. Step 6: Final answer
    x = 10,330.41

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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.