Home / 7,143.46-10,718.84-3,247.36

Finding the Fourth Proportional to 7,143.46, 10,718.84 and 3,247.36

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Solution

The fourth proportional to 7,143.46, 10,718.84 and 3,247.36 is: 4,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.46 : 10,718.84 = 3,247.36 : x
  2. Step 2: Convert to fraction form
    7,143.46/10,718.84 = 3,247.36/x
  3. Step 3: Cross multiply
    7,143.46x = 10,718.84 × 3,247.36
  4. Step 4: Simplify right side
    7,143.46x = 34,807,932.26
  5. Step 5: Solve for x
    x = 34,807,932.26/7,143.46
  6. Step 6: Final answer
    x = 4,872.70

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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.