Home / 10,355.65-15,530.87-2,960.15

Finding the Fourth Proportional to 10,355.65, 15,530.87 and 2,960.15

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Solution

The fourth proportional to 10,355.65, 15,530.87 and 2,960.15 is: 4,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.65 : 15,530.87 = 2,960.15 : x
  2. Step 2: Convert to fraction form
    10,355.65/15,530.87 = 2,960.15/x
  3. Step 3: Cross multiply
    10,355.65x = 15,530.87 × 2,960.15
  4. Step 4: Simplify right side
    10,355.65x = 45,973,704.83
  5. Step 5: Solve for x
    x = 45,973,704.83/10,355.65
  6. Step 6: Final answer
    x = 4,439.48

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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.