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Finding the Fourth Proportional to 18,338.76, 27,523.80 and 7,253.28

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Solution

The fourth proportional to 18,338.76, 27,523.80 and 7,253.28 is: 10,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.76 : 27,523.80 = 7,253.28 : x
  2. Step 2: Convert to fraction form
    18,338.76/27,523.80 = 7,253.28/x
  3. Step 3: Cross multiply
    18,338.76x = 27,523.80 × 7,253.28
  4. Step 4: Simplify right side
    18,338.76x = 199,637,828.06
  5. Step 5: Solve for x
    x = 199,637,828.06/18,338.76
  6. Step 6: Final answer
    x = 10,886.11

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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.