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Finding the Fourth Proportional to 6,441.77, 9,640.04 and 5,574.46

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Solution

The fourth proportional to 6,441.77, 9,640.04 and 5,574.46 is: 8,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.77 : 9,640.04 = 5,574.46 : x
  2. Step 2: Convert to fraction form
    6,441.77/9,640.04 = 5,574.46/x
  3. Step 3: Cross multiply
    6,441.77x = 9,640.04 × 5,574.46
  4. Step 4: Simplify right side
    6,441.77x = 53,738,017.38
  5. Step 5: Solve for x
    x = 53,738,017.38/6,441.77
  6. Step 6: Final answer
    x = 8,342.12

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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.