Home / 10,376.45-15,564.69-2,979.19

Finding the Fourth Proportional to 10,376.45, 15,564.69 and 2,979.19

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Solution

The fourth proportional to 10,376.45, 15,564.69 and 2,979.19 is: 4,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.45 : 15,564.69 = 2,979.19 : x
  2. Step 2: Convert to fraction form
    10,376.45/15,564.69 = 2,979.19/x
  3. Step 3: Cross multiply
    10,376.45x = 15,564.69 × 2,979.19
  4. Step 4: Simplify right side
    10,376.45x = 46,370,168.80
  5. Step 5: Solve for x
    x = 46,370,168.80/10,376.45
  6. Step 6: Final answer
    x = 4,468.79

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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.