Home / 7,209.63-10,815.03-2,015.46

Finding the Fourth Proportional to 7,209.63, 10,815.03 and 2,015.46

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Solution

The fourth proportional to 7,209.63, 10,815.03 and 2,015.46 is: 3,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.63 : 10,815.03 = 2,015.46 : x
  2. Step 2: Convert to fraction form
    7,209.63/10,815.03 = 2,015.46/x
  3. Step 3: Cross multiply
    7,209.63x = 10,815.03 × 2,015.46
  4. Step 4: Simplify right side
    7,209.63x = 21,797,260.36
  5. Step 5: Solve for x
    x = 21,797,260.36/7,209.63
  6. Step 6: Final answer
    x = 3,023.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.