Home / 10,369.90-15,550.16-2,972.66

Finding the Fourth Proportional to 10,369.90, 15,550.16 and 2,972.66

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Solution

The fourth proportional to 10,369.90, 15,550.16 and 2,972.66 is: 4,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.90 : 15,550.16 = 2,972.66 : x
  2. Step 2: Convert to fraction form
    10,369.90/15,550.16 = 2,972.66/x
  3. Step 3: Cross multiply
    10,369.90x = 15,550.16 × 2,972.66
  4. Step 4: Simplify right side
    10,369.90x = 46,225,338.63
  5. Step 5: Solve for x
    x = 46,225,338.63/10,369.90
  6. Step 6: Final answer
    x = 4,457.65

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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.