Home / 18,848.11-28,275.81-7,169.53

Finding the Fourth Proportional to 18,848.11, 28,275.81 and 7,169.53

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Solution

The fourth proportional to 18,848.11, 28,275.81 and 7,169.53 is: 10,755.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.11 : 28,275.81 = 7,169.53 : x
  2. Step 2: Convert to fraction form
    18,848.11/28,275.81 = 7,169.53/x
  3. Step 3: Cross multiply
    18,848.11x = 28,275.81 × 7,169.53
  4. Step 4: Simplify right side
    18,848.11x = 202,724,268.07
  5. Step 5: Solve for x
    x = 202,724,268.07/18,848.11
  6. Step 6: Final answer
    x = 10,755.68

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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.