Home / 7,143.96-9,862.08-4,757.90

Finding the Fourth Proportional to 7,143.96, 9,862.08 and 4,757.90

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Solution

The fourth proportional to 7,143.96, 9,862.08 and 4,757.90 is: 6,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.96 : 9,862.08 = 4,757.90 : x
  2. Step 2: Convert to fraction form
    7,143.96/9,862.08 = 4,757.90/x
  3. Step 3: Cross multiply
    7,143.96x = 9,862.08 × 4,757.90
  4. Step 4: Simplify right side
    7,143.96x = 46,922,790.43
  5. Step 5: Solve for x
    x = 46,922,790.43/7,143.96
  6. Step 6: Final answer
    x = 6,568.18

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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.