Home / 12,803.22-17,666.30-7,136.74

Finding the Fourth Proportional to 12,803.22, 17,666.30 and 7,136.74

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Solution

The fourth proportional to 12,803.22, 17,666.30 and 7,136.74 is: 9,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.22 : 17,666.30 = 7,136.74 : x
  2. Step 2: Convert to fraction form
    12,803.22/17,666.30 = 7,136.74/x
  3. Step 3: Cross multiply
    12,803.22x = 17,666.30 × 7,136.74
  4. Step 4: Simplify right side
    12,803.22x = 126,079,789.86
  5. Step 5: Solve for x
    x = 126,079,789.86/12,803.22
  6. Step 6: Final answer
    x = 9,847.51

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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.