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Finding the Fourth Proportional to 18,148.73, 27,216.09 and 7,053.93

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Solution

The fourth proportional to 18,148.73, 27,216.09 and 7,053.93 is: 10,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.73 : 27,216.09 = 7,053.93 : x
  2. Step 2: Convert to fraction form
    18,148.73/27,216.09 = 7,053.93/x
  3. Step 3: Cross multiply
    18,148.73x = 27,216.09 × 7,053.93
  4. Step 4: Simplify right side
    18,148.73x = 191,980,393.73
  5. Step 5: Solve for x
    x = 191,980,393.73/18,148.73
  6. Step 6: Final answer
    x = 10,578.18

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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.