Home / 10,643.21-15,967.29-3,247.65

Finding the Fourth Proportional to 10,643.21, 15,967.29 and 3,247.65

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Solution

The fourth proportional to 10,643.21, 15,967.29 and 3,247.65 is: 4,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.21 : 15,967.29 = 3,247.65 : x
  2. Step 2: Convert to fraction form
    10,643.21/15,967.29 = 3,247.65/x
  3. Step 3: Cross multiply
    10,643.21x = 15,967.29 × 3,247.65
  4. Step 4: Simplify right side
    10,643.21x = 51,856,169.37
  5. Step 5: Solve for x
    x = 51,856,169.37/10,643.21
  6. Step 6: Final answer
    x = 4,872.23

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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.