Home / 7,209.45-9,949.37-4,815.23

Finding the Fourth Proportional to 7,209.45, 9,949.37 and 4,815.23

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Solution

The fourth proportional to 7,209.45, 9,949.37 and 4,815.23 is: 6,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.45 : 9,949.37 = 4,815.23 : x
  2. Step 2: Convert to fraction form
    7,209.45/9,949.37 = 4,815.23/x
  3. Step 3: Cross multiply
    7,209.45x = 9,949.37 × 4,815.23
  4. Step 4: Simplify right side
    7,209.45x = 47,908,431.08
  5. Step 5: Solve for x
    x = 47,908,431.08/7,209.45
  6. Step 6: Final answer
    x = 6,645.23

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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.