Home / 15,987.12-22,062.35-8,817.29

Finding the Fourth Proportional to 15,987.12, 22,062.35 and 8,817.29

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Solution

The fourth proportional to 15,987.12, 22,062.35 and 8,817.29 is: 12,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.12 : 22,062.35 = 8,817.29 : x
  2. Step 2: Convert to fraction form
    15,987.12/22,062.35 = 8,817.29/x
  3. Step 3: Cross multiply
    15,987.12x = 22,062.35 × 8,817.29
  4. Step 4: Simplify right side
    15,987.12x = 194,530,200.77
  5. Step 5: Solve for x
    x = 194,530,200.77/15,987.12
  6. Step 6: Final answer
    x = 12,167.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.