Home / 7,143.36-9,856.46-4,625.12

Finding the Fourth Proportional to 7,143.36, 9,856.46 and 4,625.12

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Solution

The fourth proportional to 7,143.36, 9,856.46 and 4,625.12 is: 6,381.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.36 : 9,856.46 = 4,625.12 : x
  2. Step 2: Convert to fraction form
    7,143.36/9,856.46 = 4,625.12/x
  3. Step 3: Cross multiply
    7,143.36x = 9,856.46 × 4,625.12
  4. Step 4: Simplify right side
    7,143.36x = 45,587,310.28
  5. Step 5: Solve for x
    x = 45,587,310.28/7,143.36
  6. Step 6: Final answer
    x = 6,381.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.