Home / 19,917.30-27,487.11-10,966.80

Finding the Fourth Proportional to 19,917.30, 27,487.11 and 10,966.80

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Solution

The fourth proportional to 19,917.30, 27,487.11 and 10,966.80 is: 15,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.30 : 27,487.11 = 10,966.80 : x
  2. Step 2: Convert to fraction form
    19,917.30/27,487.11 = 10,966.80/x
  3. Step 3: Cross multiply
    19,917.30x = 27,487.11 × 10,966.80
  4. Step 4: Simplify right side
    19,917.30x = 301,445,637.95
  5. Step 5: Solve for x
    x = 301,445,637.95/19,917.30
  6. Step 6: Final answer
    x = 15,134.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.