Home / 12,293.32-16,958.88-8,315.80

Finding the Fourth Proportional to 12,293.32, 16,958.88 and 8,315.80

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Solution

The fourth proportional to 12,293.32, 16,958.88 and 8,315.80 is: 11,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.32 : 16,958.88 = 8,315.80 : x
  2. Step 2: Convert to fraction form
    12,293.32/16,958.88 = 8,315.80/x
  3. Step 3: Cross multiply
    12,293.32x = 16,958.88 × 8,315.80
  4. Step 4: Simplify right side
    12,293.32x = 141,026,654.30
  5. Step 5: Solve for x
    x = 141,026,654.30/12,293.32
  6. Step 6: Final answer
    x = 11,471.81

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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.