Home / 19,641.74-27,108.40-11,145.96

Finding the Fourth Proportional to 19,641.74, 27,108.40 and 11,145.96

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Solution

The fourth proportional to 19,641.74, 27,108.40 and 11,145.96 is: 15,383.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.74 : 27,108.40 = 11,145.96 : x
  2. Step 2: Convert to fraction form
    19,641.74/27,108.40 = 11,145.96/x
  3. Step 3: Cross multiply
    19,641.74x = 27,108.40 × 11,145.96
  4. Step 4: Simplify right side
    19,641.74x = 302,149,114.20
  5. Step 5: Solve for x
    x = 302,149,114.20/19,641.74
  6. Step 6: Final answer
    x = 15,383.01

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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.