Home / 7,784.18-11,669.74-3,398.30

Finding the Fourth Proportional to 7,784.18, 11,669.74 and 3,398.30

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Solution

The fourth proportional to 7,784.18, 11,669.74 and 3,398.30 is: 5,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.18 : 11,669.74 = 3,398.30 : x
  2. Step 2: Convert to fraction form
    7,784.18/11,669.74 = 3,398.30/x
  3. Step 3: Cross multiply
    7,784.18x = 11,669.74 × 3,398.30
  4. Step 4: Simplify right side
    7,784.18x = 39,657,277.44
  5. Step 5: Solve for x
    x = 39,657,277.44/7,784.18
  6. Step 6: Final answer
    x = 5,094.60

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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.