Home / 11,319.30-15,625.86-6,784.13

Finding the Fourth Proportional to 11,319.30, 15,625.86 and 6,784.13

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Solution

The fourth proportional to 11,319.30, 15,625.86 and 6,784.13 is: 9,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.30 : 15,625.86 = 6,784.13 : x
  2. Step 2: Convert to fraction form
    11,319.30/15,625.86 = 6,784.13/x
  3. Step 3: Cross multiply
    11,319.30x = 15,625.86 × 6,784.13
  4. Step 4: Simplify right side
    11,319.30x = 106,007,930.11
  5. Step 5: Solve for x
    x = 106,007,930.11/11,319.30
  6. Step 6: Final answer
    x = 9,365.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.