Home / 6,381.47-8,808.17-4,143.23

Finding the Fourth Proportional to 6,381.47, 8,808.17 and 4,143.23

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Solution

The fourth proportional to 6,381.47, 8,808.17 and 4,143.23 is: 5,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.47 : 8,808.17 = 4,143.23 : x
  2. Step 2: Convert to fraction form
    6,381.47/8,808.17 = 4,143.23/x
  3. Step 3: Cross multiply
    6,381.47x = 8,808.17 × 4,143.23
  4. Step 4: Simplify right side
    6,381.47x = 36,494,274.19
  5. Step 5: Solve for x
    x = 36,494,274.19/6,381.47
  6. Step 6: Final answer
    x = 5,718.79

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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.