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Finding the Fourth Proportional to 9,815.88, 13,545.42 and 5,339.52

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Solution

The fourth proportional to 9,815.88, 13,545.42 and 5,339.52 is: 7,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.88 : 13,545.42 = 5,339.52 : x
  2. Step 2: Convert to fraction form
    9,815.88/13,545.42 = 5,339.52/x
  3. Step 3: Cross multiply
    9,815.88x = 13,545.42 × 5,339.52
  4. Step 4: Simplify right side
    9,815.88x = 72,326,041.00
  5. Step 5: Solve for x
    x = 72,326,041.00/9,815.88
  6. Step 6: Final answer
    x = 7,368.27

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