Home / 8,860.79-13,276.74-5,166.15

Finding the Fourth Proportional to 8,860.79, 13,276.74 and 5,166.15

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Solution

The fourth proportional to 8,860.79, 13,276.74 and 5,166.15 is: 7,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.79 : 13,276.74 = 5,166.15 : x
  2. Step 2: Convert to fraction form
    8,860.79/13,276.74 = 5,166.15/x
  3. Step 3: Cross multiply
    8,860.79x = 13,276.74 × 5,166.15
  4. Step 4: Simplify right side
    8,860.79x = 68,589,599.94
  5. Step 5: Solve for x
    x = 68,589,599.94/8,860.79
  6. Step 6: Final answer
    x = 7,740.80

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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.