Home / 8,709.12-13,053.96-3,439.26

Finding the Fourth Proportional to 8,709.12, 13,053.96 and 3,439.26

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Solution

The fourth proportional to 8,709.12, 13,053.96 and 3,439.26 is: 5,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.12 : 13,053.96 = 3,439.26 : x
  2. Step 2: Convert to fraction form
    8,709.12/13,053.96 = 3,439.26/x
  3. Step 3: Cross multiply
    8,709.12x = 13,053.96 × 3,439.26
  4. Step 4: Simplify right side
    8,709.12x = 44,895,962.47
  5. Step 5: Solve for x
    x = 44,895,962.47/8,709.12
  6. Step 6: Final answer
    x = 5,155.05

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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.