Home / 8,459.26-12,686.10-2,912.47

Finding the Fourth Proportional to 8,459.26, 12,686.10 and 2,912.47

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Solution

The fourth proportional to 8,459.26, 12,686.10 and 2,912.47 is: 4,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.26 : 12,686.10 = 2,912.47 : x
  2. Step 2: Convert to fraction form
    8,459.26/12,686.10 = 2,912.47/x
  3. Step 3: Cross multiply
    8,459.26x = 12,686.10 × 2,912.47
  4. Step 4: Simplify right side
    8,459.26x = 36,947,885.67
  5. Step 5: Solve for x
    x = 36,947,885.67/8,459.26
  6. Step 6: Final answer
    x = 4,367.74

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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.