Home / 10,284.80-15,441.32-5,291.28

Finding the Fourth Proportional to 10,284.80, 15,441.32 and 5,291.28

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Solution

The fourth proportional to 10,284.80, 15,441.32 and 5,291.28 is: 7,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.80 : 15,441.32 = 5,291.28 : x
  2. Step 2: Convert to fraction form
    10,284.80/15,441.32 = 5,291.28/x
  3. Step 3: Cross multiply
    10,284.80x = 15,441.32 × 5,291.28
  4. Step 4: Simplify right side
    10,284.80x = 81,704,360.92
  5. Step 5: Solve for x
    x = 81,704,360.92/10,284.80
  6. Step 6: Final answer
    x = 7,944.19

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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.