Home / 8,479.29-11,697.39-5,647.98

Finding the Fourth Proportional to 8,479.29, 11,697.39 and 5,647.98

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Solution

The fourth proportional to 8,479.29, 11,697.39 and 5,647.98 is: 7,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.29 : 11,697.39 = 5,647.98 : x
  2. Step 2: Convert to fraction form
    8,479.29/11,697.39 = 5,647.98/x
  3. Step 3: Cross multiply
    8,479.29x = 11,697.39 × 5,647.98
  4. Step 4: Simplify right side
    8,479.29x = 66,066,624.77
  5. Step 5: Solve for x
    x = 66,066,624.77/8,479.29
  6. Step 6: Final answer
    x = 7,791.53

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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.