Home / 13,897.11-20,845.56-11,812.17

Finding the Fourth Proportional to 13,897.11, 20,845.56 and 11,812.17

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Solution

The fourth proportional to 13,897.11, 20,845.56 and 11,812.17 is: 17,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.11 : 20,845.56 = 11,812.17 : x
  2. Step 2: Convert to fraction form
    13,897.11/20,845.56 = 11,812.17/x
  3. Step 3: Cross multiply
    13,897.11x = 20,845.56 × 11,812.17
  4. Step 4: Simplify right side
    13,897.11x = 246,231,298.47
  5. Step 5: Solve for x
    x = 246,231,298.47/13,897.11
  6. Step 6: Final answer
    x = 17,718.17

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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.