Home / 10,721.80-16,086.35-6,768.46

Finding the Fourth Proportional to 10,721.80, 16,086.35 and 6,768.46

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Solution

The fourth proportional to 10,721.80, 16,086.35 and 6,768.46 is: 10,154.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.80 : 16,086.35 = 6,768.46 : x
  2. Step 2: Convert to fraction form
    10,721.80/16,086.35 = 6,768.46/x
  3. Step 3: Cross multiply
    10,721.80x = 16,086.35 × 6,768.46
  4. Step 4: Simplify right side
    10,721.80x = 108,879,816.52
  5. Step 5: Solve for x
    x = 108,879,816.52/10,721.80
  6. Step 6: Final answer
    x = 10,154.99

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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.