Home / 9,815.22-13,545.07-5,339.00

Finding the Fourth Proportional to 9,815.22, 13,545.07 and 5,339.00

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Solution

The fourth proportional to 9,815.22, 13,545.07 and 5,339.00 is: 7,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.22 : 13,545.07 = 5,339.00 : x
  2. Step 2: Convert to fraction form
    9,815.22/13,545.07 = 5,339.00/x
  3. Step 3: Cross multiply
    9,815.22x = 13,545.07 × 5,339.00
  4. Step 4: Simplify right side
    9,815.22x = 72,317,149.25
  5. Step 5: Solve for x
    x = 72,317,149.25/9,815.22
  6. Step 6: Final answer
    x = 7,367.86

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1.5x scale

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.