Home / 7,764.72-10,716.48-4,934.40

Finding the Fourth Proportional to 7,764.72, 10,716.48 and 4,934.40

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Solution

The fourth proportional to 7,764.72, 10,716.48 and 4,934.40 is: 6,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.72 : 10,716.48 = 4,934.40 : x
  2. Step 2: Convert to fraction form
    7,764.72/10,716.48 = 4,934.40/x
  3. Step 3: Cross multiply
    7,764.72x = 10,716.48 × 4,934.40
  4. Step 4: Simplify right side
    7,764.72x = 52,879,398.91
  5. Step 5: Solve for x
    x = 52,879,398.91/7,764.72
  6. Step 6: Final answer
    x = 6,810.21

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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.