Home / 10,296.80-15,431.52-5,618.96

Finding the Fourth Proportional to 10,296.80, 15,431.52 and 5,618.96

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Solution

The fourth proportional to 10,296.80, 15,431.52 and 5,618.96 is: 8,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,296.80 : 15,431.52 = 5,618.96 : x
  2. Step 2: Convert to fraction form
    10,296.80/15,431.52 = 5,618.96/x
  3. Step 3: Cross multiply
    10,296.80x = 15,431.52 × 5,618.96
  4. Step 4: Simplify right side
    10,296.80x = 86,709,093.62
  5. Step 5: Solve for x
    x = 86,709,093.62/10,296.80
  6. Step 6: Final answer
    x = 8,420.97

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1.5x scale

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.