Home / 12,136.96-16,698.92-9,479.76

Finding the Fourth Proportional to 12,136.96, 16,698.92 and 9,479.76

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Solution

The fourth proportional to 12,136.96, 16,698.92 and 9,479.76 is: 13,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.96 : 16,698.92 = 9,479.76 : x
  2. Step 2: Convert to fraction form
    12,136.96/16,698.92 = 9,479.76/x
  3. Step 3: Cross multiply
    12,136.96x = 16,698.92 × 9,479.76
  4. Step 4: Simplify right side
    12,136.96x = 158,301,753.86
  5. Step 5: Solve for x
    x = 158,301,753.86/12,136.96
  6. Step 6: Final answer
    x = 13,042.95

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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.