Home / 14,148.12-21,189.80-6,757.76

Finding the Fourth Proportional to 14,148.12, 21,189.80 and 6,757.76

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Solution

The fourth proportional to 14,148.12, 21,189.80 and 6,757.76 is: 10,121.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.12 : 21,189.80 = 6,757.76 : x
  2. Step 2: Convert to fraction form
    14,148.12/21,189.80 = 6,757.76/x
  3. Step 3: Cross multiply
    14,148.12x = 21,189.80 × 6,757.76
  4. Step 4: Simplify right side
    14,148.12x = 143,195,582.85
  5. Step 5: Solve for x
    x = 143,195,582.85/14,148.12
  6. Step 6: Final answer
    x = 10,121.17

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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.