Home / 19,816.16-29,728.79-6,668.18

Finding the Fourth Proportional to 19,816.16, 29,728.79 and 6,668.18

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Solution

The fourth proportional to 19,816.16, 29,728.79 and 6,668.18 is: 10,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.16 : 29,728.79 = 6,668.18 : x
  2. Step 2: Convert to fraction form
    19,816.16/29,728.79 = 6,668.18/x
  3. Step 3: Cross multiply
    19,816.16x = 29,728.79 × 6,668.18
  4. Step 4: Simplify right side
    19,816.16x = 198,236,740.92
  5. Step 5: Solve for x
    x = 198,236,740.92/19,816.16
  6. Step 6: Final answer
    x = 10,003.79

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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.