Home / 8,460.60-12,689.70-2,617.80

Finding the Fourth Proportional to 8,460.60, 12,689.70 and 2,617.80

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Solution

The fourth proportional to 8,460.60, 12,689.70 and 2,617.80 is: 3,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.60 : 12,689.70 = 2,617.80 : x
  2. Step 2: Convert to fraction form
    8,460.60/12,689.70 = 2,617.80/x
  3. Step 3: Cross multiply
    8,460.60x = 12,689.70 × 2,617.80
  4. Step 4: Simplify right side
    8,460.60x = 33,219,096.66
  5. Step 5: Solve for x
    x = 33,219,096.66/8,460.60
  6. Step 6: Final answer
    x = 3,926.33

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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.