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Finding the Fourth Proportional to 7,074.77, 9,767.45 and 4,686.77

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Solution

The fourth proportional to 7,074.77, 9,767.45 and 4,686.77 is: 6,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.77 : 9,767.45 = 4,686.77 : x
  2. Step 2: Convert to fraction form
    7,074.77/9,767.45 = 4,686.77/x
  3. Step 3: Cross multiply
    7,074.77x = 9,767.45 × 4,686.77
  4. Step 4: Simplify right side
    7,074.77x = 45,777,791.64
  5. Step 5: Solve for x
    x = 45,777,791.64/7,074.77
  6. Step 6: Final answer
    x = 6,470.57

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