Home / 16,218.46-22,381.48-9,144.87

Finding the Fourth Proportional to 16,218.46, 22,381.48 and 9,144.87

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Solution

The fourth proportional to 16,218.46, 22,381.48 and 9,144.87 is: 12,619.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.46 : 22,381.48 = 9,144.87 : x
  2. Step 2: Convert to fraction form
    16,218.46/22,381.48 = 9,144.87/x
  3. Step 3: Cross multiply
    16,218.46x = 22,381.48 × 9,144.87
  4. Step 4: Simplify right side
    16,218.46x = 204,675,652.51
  5. Step 5: Solve for x
    x = 204,675,652.51/16,218.46
  6. Step 6: Final answer
    x = 12,619.92

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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.