Home / 8,709.28-13,056.62-3,518.80

Finding the Fourth Proportional to 8,709.28, 13,056.62 and 3,518.80

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Solution

The fourth proportional to 8,709.28, 13,056.62 and 3,518.80 is: 5,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.28 : 13,056.62 = 3,518.80 : x
  2. Step 2: Convert to fraction form
    8,709.28/13,056.62 = 3,518.80/x
  3. Step 3: Cross multiply
    8,709.28x = 13,056.62 × 3,518.80
  4. Step 4: Simplify right side
    8,709.28x = 45,943,634.46
  5. Step 5: Solve for x
    x = 45,943,634.46/8,709.28
  6. Step 6: Final answer
    x = 5,275.25

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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.