Home / 10,965.90-16,439.63-4,388.50

Finding the Fourth Proportional to 10,965.90, 16,439.63 and 4,388.50

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Solution

The fourth proportional to 10,965.90, 16,439.63 and 4,388.50 is: 6,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.90 : 16,439.63 = 4,388.50 : x
  2. Step 2: Convert to fraction form
    10,965.90/16,439.63 = 4,388.50/x
  3. Step 3: Cross multiply
    10,965.90x = 16,439.63 × 4,388.50
  4. Step 4: Simplify right side
    10,965.90x = 72,145,316.26
  5. Step 5: Solve for x
    x = 72,145,316.26/10,965.90
  6. Step 6: Final answer
    x = 6,579.06

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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.