Home / 10,318.90-15,479.56-3,297

Finding the Fourth Proportional to 10,318.90, 15,479.56 and 3,297

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Solution

The fourth proportional to 10,318.90, 15,479.56 and 3,297 is: 4,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.90 : 15,479.56 = 3,297 : x
  2. Step 2: Convert to fraction form
    10,318.90/15,479.56 = 3,297/x
  3. Step 3: Cross multiply
    10,318.90x = 15,479.56 × 3,297
  4. Step 4: Simplify right side
    10,318.90x = 51,036,109.32
  5. Step 5: Solve for x
    x = 51,036,109.32/10,318.90
  6. Step 6: Final answer
    x = 4,945.89

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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.