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Finding the Fourth Proportional to 9,643.80, 14,454.90 and 4,096.20

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Solution

The fourth proportional to 9,643.80, 14,454.90 and 4,096.20 is: 6,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.80 : 14,454.90 = 4,096.20 : x
  2. Step 2: Convert to fraction form
    9,643.80/14,454.90 = 4,096.20/x
  3. Step 3: Cross multiply
    9,643.80x = 14,454.90 × 4,096.20
  4. Step 4: Simplify right side
    9,643.80x = 59,210,161.38
  5. Step 5: Solve for x
    x = 59,210,161.38/9,643.80
  6. Step 6: Final answer
    x = 6,139.71

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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.