Home / 18,117.15-27,172.81-4,966.47

Finding the Fourth Proportional to 18,117.15, 27,172.81 and 4,966.47

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Solution

The fourth proportional to 18,117.15, 27,172.81 and 4,966.47 is: 7,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.15 : 27,172.81 = 4,966.47 : x
  2. Step 2: Convert to fraction form
    18,117.15/27,172.81 = 4,966.47/x
  3. Step 3: Cross multiply
    18,117.15x = 27,172.81 × 4,966.47
  4. Step 4: Simplify right side
    18,117.15x = 134,952,945.68
  5. Step 5: Solve for x
    x = 134,952,945.68/18,117.15
  6. Step 6: Final answer
    x = 7,448.91

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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.