Home / 11,317.24-15,617.64-6,281.45

Finding the Fourth Proportional to 11,317.24, 15,617.64 and 6,281.45

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Solution

The fourth proportional to 11,317.24, 15,617.64 and 6,281.45 is: 8,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.24 : 15,617.64 = 6,281.45 : x
  2. Step 2: Convert to fraction form
    11,317.24/15,617.64 = 6,281.45/x
  3. Step 3: Cross multiply
    11,317.24x = 15,617.64 × 6,281.45
  4. Step 4: Simplify right side
    11,317.24x = 98,101,375.97
  5. Step 5: Solve for x
    x = 98,101,375.97/11,317.24
  6. Step 6: Final answer
    x = 8,668.31

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1.5x scale

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.