Home / 15,987.76-22,062.30-8,912.82

Finding the Fourth Proportional to 15,987.76, 22,062.30 and 8,912.82

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Solution

The fourth proportional to 15,987.76, 22,062.30 and 8,912.82 is: 12,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.76 : 22,062.30 = 8,912.82 : x
  2. Step 2: Convert to fraction form
    15,987.76/22,062.30 = 8,912.82/x
  3. Step 3: Cross multiply
    15,987.76x = 22,062.30 × 8,912.82
  4. Step 4: Simplify right side
    15,987.76x = 196,637,308.69
  5. Step 5: Solve for x
    x = 196,637,308.69/15,987.76
  6. Step 6: Final answer
    x = 12,299.24

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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.