Home / 9,131.47-13,697.30-7,806.65

Finding the Fourth Proportional to 9,131.47, 13,697.30 and 7,806.65

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Solution

The fourth proportional to 9,131.47, 13,697.30 and 7,806.65 is: 11,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.47 : 13,697.30 = 7,806.65 : x
  2. Step 2: Convert to fraction form
    9,131.47/13,697.30 = 7,806.65/x
  3. Step 3: Cross multiply
    9,131.47x = 13,697.30 × 7,806.65
  4. Step 4: Simplify right side
    9,131.47x = 106,929,978.08
  5. Step 5: Solve for x
    x = 106,929,978.08/9,131.47
  6. Step 6: Final answer
    x = 11,710.05

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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.