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Finding the Fourth Proportional to 7,699.69, 11,559.11 and 5,374.49

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Solution

The fourth proportional to 7,699.69, 11,559.11 and 5,374.49 is: 8,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.69 : 11,559.11 = 5,374.49 : x
  2. Step 2: Convert to fraction form
    7,699.69/11,559.11 = 5,374.49/x
  3. Step 3: Cross multiply
    7,699.69x = 11,559.11 × 5,374.49
  4. Step 4: Simplify right side
    7,699.69x = 62,124,236.44
  5. Step 5: Solve for x
    x = 62,124,236.44/7,699.69
  6. Step 6: Final answer
    x = 8,068.40

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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.