Home / 14,008.12-21,012.78-4,147.18

Finding the Fourth Proportional to 14,008.12, 21,012.78 and 4,147.18

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Solution

The fourth proportional to 14,008.12, 21,012.78 and 4,147.18 is: 6,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.12 : 21,012.78 = 4,147.18 : x
  2. Step 2: Convert to fraction form
    14,008.12/21,012.78 = 4,147.18/x
  3. Step 3: Cross multiply
    14,008.12x = 21,012.78 × 4,147.18
  4. Step 4: Simplify right side
    14,008.12x = 87,143,780.96
  5. Step 5: Solve for x
    x = 87,143,780.96/14,008.12
  6. Step 6: Final answer
    x = 6,220.95

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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.