Home / 9,815.37-13,545.08-5,339.03

Finding the Fourth Proportional to 9,815.37, 13,545.08 and 5,339.03

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Solution

The fourth proportional to 9,815.37, 13,545.08 and 5,339.03 is: 7,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.37 : 13,545.08 = 5,339.03 : x
  2. Step 2: Convert to fraction form
    9,815.37/13,545.08 = 5,339.03/x
  3. Step 3: Cross multiply
    9,815.37x = 13,545.08 × 5,339.03
  4. Step 4: Simplify right side
    9,815.37x = 72,317,588.47
  5. Step 5: Solve for x
    x = 72,317,588.47/9,815.37
  6. Step 6: Final answer
    x = 7,367.79

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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.