Home / 10,485.44-15,716.32-4,641.28

Finding the Fourth Proportional to 10,485.44, 15,716.32 and 4,641.28

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Solution

The fourth proportional to 10,485.44, 15,716.32 and 4,641.28 is: 6,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.44 : 15,716.32 = 4,641.28 : x
  2. Step 2: Convert to fraction form
    10,485.44/15,716.32 = 4,641.28/x
  3. Step 3: Cross multiply
    10,485.44x = 15,716.32 × 4,641.28
  4. Step 4: Simplify right side
    10,485.44x = 72,943,841.69
  5. Step 5: Solve for x
    x = 72,943,841.69/10,485.44
  6. Step 6: Final answer
    x = 6,956.68

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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.