Home / 19,630.86-27,089.78-11,133.56

Finding the Fourth Proportional to 19,630.86, 27,089.78 and 11,133.56

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Solution

The fourth proportional to 19,630.86, 27,089.78 and 11,133.56 is: 15,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.86 : 27,089.78 = 11,133.56 : x
  2. Step 2: Convert to fraction form
    19,630.86/27,089.78 = 11,133.56/x
  3. Step 3: Cross multiply
    19,630.86x = 27,089.78 × 11,133.56
  4. Step 4: Simplify right side
    19,630.86x = 301,605,691.02
  5. Step 5: Solve for x
    x = 301,605,691.02/19,630.86
  6. Step 6: Final answer
    x = 15,363.86

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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.