Home / 15,987.59-22,062.06-8,912.64

Finding the Fourth Proportional to 15,987.59, 22,062.06 and 8,912.64

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Solution

The fourth proportional to 15,987.59, 22,062.06 and 8,912.64 is: 12,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.59 : 22,062.06 = 8,912.64 : x
  2. Step 2: Convert to fraction form
    15,987.59/22,062.06 = 8,912.64/x
  3. Step 3: Cross multiply
    15,987.59x = 22,062.06 × 8,912.64
  4. Step 4: Simplify right side
    15,987.59x = 196,631,198.44
  5. Step 5: Solve for x
    x = 196,631,198.44/15,987.59
  6. Step 6: Final answer
    x = 12,298.99

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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.