Home / 8,699.64-13,049.56-2,459.80

Finding the Fourth Proportional to 8,699.64, 13,049.56 and 2,459.80

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Solution

The fourth proportional to 8,699.64, 13,049.56 and 2,459.80 is: 3,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.64 : 13,049.56 = 2,459.80 : x
  2. Step 2: Convert to fraction form
    8,699.64/13,049.56 = 2,459.80/x
  3. Step 3: Cross multiply
    8,699.64x = 13,049.56 × 2,459.80
  4. Step 4: Simplify right side
    8,699.64x = 32,099,307.69
  5. Step 5: Solve for x
    x = 32,099,307.69/8,699.64
  6. Step 6: Final answer
    x = 3,689.73

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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.