Home / 10,605.80-14,629.28-6,515.81

Finding the Fourth Proportional to 10,605.80, 14,629.28 and 6,515.81

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Solution

The fourth proportional to 10,605.80, 14,629.28 and 6,515.81 is: 8,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.80 : 14,629.28 = 6,515.81 : x
  2. Step 2: Convert to fraction form
    10,605.80/14,629.28 = 6,515.81/x
  3. Step 3: Cross multiply
    10,605.80x = 14,629.28 × 6,515.81
  4. Step 4: Simplify right side
    10,605.80x = 95,321,608.92
  5. Step 5: Solve for x
    x = 95,321,608.92/10,605.80
  6. Step 6: Final answer
    x = 8,987.69

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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.