Home / 6,518.60-8,996.28-3,686.60

Finding the Fourth Proportional to 6,518.60, 8,996.28 and 3,686.60

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Solution

The fourth proportional to 6,518.60, 8,996.28 and 3,686.60 is: 5,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.60 : 8,996.28 = 3,686.60 : x
  2. Step 2: Convert to fraction form
    6,518.60/8,996.28 = 3,686.60/x
  3. Step 3: Cross multiply
    6,518.60x = 8,996.28 × 3,686.60
  4. Step 4: Simplify right side
    6,518.60x = 33,165,685.85
  5. Step 5: Solve for x
    x = 33,165,685.85/6,518.60
  6. Step 6: Final answer
    x = 5,087.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.