Home / 11,277.80-15,563.28-6,309.80

Finding the Fourth Proportional to 11,277.80, 15,563.28 and 6,309.80

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Solution

The fourth proportional to 11,277.80, 15,563.28 and 6,309.80 is: 8,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.80 : 15,563.28 = 6,309.80 : x
  2. Step 2: Convert to fraction form
    11,277.80/15,563.28 = 6,309.80/x
  3. Step 3: Cross multiply
    11,277.80x = 15,563.28 × 6,309.80
  4. Step 4: Simplify right side
    11,277.80x = 98,201,184.14
  5. Step 5: Solve for x
    x = 98,201,184.14/11,277.80
  6. Step 6: Final answer
    x = 8,707.48

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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.