Home / 19,811.25-29,696.40-6,659.19

Finding the Fourth Proportional to 19,811.25, 29,696.40 and 6,659.19

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Solution

The fourth proportional to 19,811.25, 29,696.40 and 6,659.19 is: 9,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.25 : 29,696.40 = 6,659.19 : x
  2. Step 2: Convert to fraction form
    19,811.25/29,696.40 = 6,659.19/x
  3. Step 3: Cross multiply
    19,811.25x = 29,696.40 × 6,659.19
  4. Step 4: Simplify right side
    19,811.25x = 197,753,969.92
  5. Step 5: Solve for x
    x = 197,753,969.92/19,811.25
  6. Step 6: Final answer
    x = 9,981.90

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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.