Home / 7,830.15-11,744.61-3,669.08

Finding the Fourth Proportional to 7,830.15, 11,744.61 and 3,669.08

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Solution

The fourth proportional to 7,830.15, 11,744.61 and 3,669.08 is: 5,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.15 : 11,744.61 = 3,669.08 : x
  2. Step 2: Convert to fraction form
    7,830.15/11,744.61 = 3,669.08/x
  3. Step 3: Cross multiply
    7,830.15x = 11,744.61 × 3,669.08
  4. Step 4: Simplify right side
    7,830.15x = 43,091,854.94
  5. Step 5: Solve for x
    x = 43,091,854.94/7,830.15
  6. Step 6: Final answer
    x = 5,503.32

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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.