Home / 10,376.04-15,561.78-2,978.85

Finding the Fourth Proportional to 10,376.04, 15,561.78 and 2,978.85

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Solution

The fourth proportional to 10,376.04, 15,561.78 and 2,978.85 is: 4,467.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.04 : 15,561.78 = 2,978.85 : x
  2. Step 2: Convert to fraction form
    10,376.04/15,561.78 = 2,978.85/x
  3. Step 3: Cross multiply
    10,376.04x = 15,561.78 × 2,978.85
  4. Step 4: Simplify right side
    10,376.04x = 46,356,208.35
  5. Step 5: Solve for x
    x = 46,356,208.35/10,376.04
  6. Step 6: Final answer
    x = 4,467.62

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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.