Home / 10,309.68-15,465.36-3,290.64

Finding the Fourth Proportional to 10,309.68, 15,465.36 and 3,290.64

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Solution

The fourth proportional to 10,309.68, 15,465.36 and 3,290.64 is: 4,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.68 : 15,465.36 = 3,290.64 : x
  2. Step 2: Convert to fraction form
    10,309.68/15,465.36 = 3,290.64/x
  3. Step 3: Cross multiply
    10,309.68x = 15,465.36 × 3,290.64
  4. Step 4: Simplify right side
    10,309.68x = 50,890,932.23
  5. Step 5: Solve for x
    x = 50,890,932.23/10,309.68
  6. Step 6: Final answer
    x = 4,936.23

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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.