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Finding the Fourth Proportional to 8,689.51, 13,035.03 and 2,449.58

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Solution

The fourth proportional to 8,689.51, 13,035.03 and 2,449.58 is: 3,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.51 : 13,035.03 = 2,449.58 : x
  2. Step 2: Convert to fraction form
    8,689.51/13,035.03 = 2,449.58/x
  3. Step 3: Cross multiply
    8,689.51x = 13,035.03 × 2,449.58
  4. Step 4: Simplify right side
    8,689.51x = 31,930,348.79
  5. Step 5: Solve for x
    x = 31,930,348.79/8,689.51
  6. Step 6: Final answer
    x = 3,674.59

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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.