Home / 17,987.13-26,982.36-8,631.63

Finding the Fourth Proportional to 17,987.13, 26,982.36 and 8,631.63

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Solution

The fourth proportional to 17,987.13, 26,982.36 and 8,631.63 is: 12,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.13 : 26,982.36 = 8,631.63 : x
  2. Step 2: Convert to fraction form
    17,987.13/26,982.36 = 8,631.63/x
  3. Step 3: Cross multiply
    17,987.13x = 26,982.36 × 8,631.63
  4. Step 4: Simplify right side
    17,987.13x = 232,901,748.05
  5. Step 5: Solve for x
    x = 232,901,748.05/17,987.13
  6. Step 6: Final answer
    x = 12,948.24

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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.