Home / 19,808.47-29,712.86-6,660.66

Finding the Fourth Proportional to 19,808.47, 29,712.86 and 6,660.66

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Solution

The fourth proportional to 19,808.47, 29,712.86 and 6,660.66 is: 9,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.47 : 29,712.86 = 6,660.66 : x
  2. Step 2: Convert to fraction form
    19,808.47/29,712.86 = 6,660.66/x
  3. Step 3: Cross multiply
    19,808.47x = 29,712.86 × 6,660.66
  4. Step 4: Simplify right side
    19,808.47x = 197,907,138.58
  5. Step 5: Solve for x
    x = 197,907,138.58/19,808.47
  6. Step 6: Final answer
    x = 9,991.03

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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.