Home / 16,516.80-24,778.40-7,156.80

Finding the Fourth Proportional to 16,516.80, 24,778.40 and 7,156.80

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Solution

The fourth proportional to 16,516.80, 24,778.40 and 7,156.80 is: 10,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,516.80 : 24,778.40 = 7,156.80 : x
  2. Step 2: Convert to fraction form
    16,516.80/24,778.40 = 7,156.80/x
  3. Step 3: Cross multiply
    16,516.80x = 24,778.40 × 7,156.80
  4. Step 4: Simplify right side
    16,516.80x = 177,334,053.12
  5. Step 5: Solve for x
    x = 177,334,053.12/16,516.80
  6. Step 6: Final answer
    x = 10,736.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.