Home / 9,368.73-12,928.49-5,387.13

Finding the Fourth Proportional to 9,368.73, 12,928.49 and 5,387.13

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Solution

The fourth proportional to 9,368.73, 12,928.49 and 5,387.13 is: 7,434.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.73 : 12,928.49 = 5,387.13 : x
  2. Step 2: Convert to fraction form
    9,368.73/12,928.49 = 5,387.13/x
  3. Step 3: Cross multiply
    9,368.73x = 12,928.49 × 5,387.13
  4. Step 4: Simplify right side
    9,368.73x = 69,647,429.40
  5. Step 5: Solve for x
    x = 69,647,429.40/9,368.73
  6. Step 6: Final answer
    x = 7,434.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.