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Finding the Fourth Proportional to 8,694.69, 13,010.87 and 7,528.72

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Solution

The fourth proportional to 8,694.69, 13,010.87 and 7,528.72 is: 11,266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.69 : 13,010.87 = 7,528.72 : x
  2. Step 2: Convert to fraction form
    8,694.69/13,010.87 = 7,528.72/x
  3. Step 3: Cross multiply
    8,694.69x = 13,010.87 × 7,528.72
  4. Step 4: Simplify right side
    8,694.69x = 97,955,197.19
  5. Step 5: Solve for x
    x = 97,955,197.19/8,694.69
  6. Step 6: Final answer
    x = 11,266.09

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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.