Home / 11,145.18-16,718.69-3,747.66

Finding the Fourth Proportional to 11,145.18, 16,718.69 and 3,747.66

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Solution

The fourth proportional to 11,145.18, 16,718.69 and 3,747.66 is: 5,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.18 : 16,718.69 = 3,747.66 : x
  2. Step 2: Convert to fraction form
    11,145.18/16,718.69 = 3,747.66/x
  3. Step 3: Cross multiply
    11,145.18x = 16,718.69 × 3,747.66
  4. Step 4: Simplify right side
    11,145.18x = 62,655,965.77
  5. Step 5: Solve for x
    x = 62,655,965.77/11,145.18
  6. Step 6: Final answer
    x = 5,621.80

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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.