Home / 10,390.62-15,585.75-3,370.83

Finding the Fourth Proportional to 10,390.62, 15,585.75 and 3,370.83

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Solution

The fourth proportional to 10,390.62, 15,585.75 and 3,370.83 is: 5,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.62 : 15,585.75 = 3,370.83 : x
  2. Step 2: Convert to fraction form
    10,390.62/15,585.75 = 3,370.83/x
  3. Step 3: Cross multiply
    10,390.62x = 15,585.75 × 3,370.83
  4. Step 4: Simplify right side
    10,390.62x = 52,536,913.67
  5. Step 5: Solve for x
    x = 52,536,913.67/10,390.62
  6. Step 6: Final answer
    x = 5,056.19

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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.