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Finding the Fourth Proportional to 7,689.66, 11,534.13 and 2,495.58

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Solution

The fourth proportional to 7,689.66, 11,534.13 and 2,495.58 is: 3,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.66 : 11,534.13 = 2,495.58 : x
  2. Step 2: Convert to fraction form
    7,689.66/11,534.13 = 2,495.58/x
  3. Step 3: Cross multiply
    7,689.66x = 11,534.13 × 2,495.58
  4. Step 4: Simplify right side
    7,689.66x = 28,784,344.15
  5. Step 5: Solve for x
    x = 28,784,344.15/7,689.66
  6. Step 6: Final answer
    x = 3,743.25

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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.