Home / 11,561.42-17,341.47-3,127.80

Finding the Fourth Proportional to 11,561.42, 17,341.47 and 3,127.80

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Solution

The fourth proportional to 11,561.42, 17,341.47 and 3,127.80 is: 4,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.42 : 17,341.47 = 3,127.80 : x
  2. Step 2: Convert to fraction form
    11,561.42/17,341.47 = 3,127.80/x
  3. Step 3: Cross multiply
    11,561.42x = 17,341.47 × 3,127.80
  4. Step 4: Simplify right side
    11,561.42x = 54,240,649.87
  5. Step 5: Solve for x
    x = 54,240,649.87/11,561.42
  6. Step 6: Final answer
    x = 4,691.52

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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.