Home / 8,724.76-13,090.64-3,178.50

Finding the Fourth Proportional to 8,724.76, 13,090.64 and 3,178.50

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Solution

The fourth proportional to 8,724.76, 13,090.64 and 3,178.50 is: 4,769.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.76 : 13,090.64 = 3,178.50 : x
  2. Step 2: Convert to fraction form
    8,724.76/13,090.64 = 3,178.50/x
  3. Step 3: Cross multiply
    8,724.76x = 13,090.64 × 3,178.50
  4. Step 4: Simplify right side
    8,724.76x = 41,608,599.24
  5. Step 5: Solve for x
    x = 41,608,599.24/8,724.76
  6. Step 6: Final answer
    x = 4,769.03

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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.