Home / 7,470.21-11,205.34-3,309.10

Finding the Fourth Proportional to 7,470.21, 11,205.34 and 3,309.10

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Solution

The fourth proportional to 7,470.21, 11,205.34 and 3,309.10 is: 4,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.21 : 11,205.34 = 3,309.10 : x
  2. Step 2: Convert to fraction form
    7,470.21/11,205.34 = 3,309.10/x
  3. Step 3: Cross multiply
    7,470.21x = 11,205.34 × 3,309.10
  4. Step 4: Simplify right side
    7,470.21x = 37,079,554.31
  5. Step 5: Solve for x
    x = 37,079,554.31/7,470.21
  6. Step 6: Final answer
    x = 4,963.65

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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.