Home / 11,353.66-15,668.49-6,317.68

Finding the Fourth Proportional to 11,353.66, 15,668.49 and 6,317.68

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Solution

The fourth proportional to 11,353.66, 15,668.49 and 6,317.68 is: 8,718.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.66 : 15,668.49 = 6,317.68 : x
  2. Step 2: Convert to fraction form
    11,353.66/15,668.49 = 6,317.68/x
  3. Step 3: Cross multiply
    11,353.66x = 15,668.49 × 6,317.68
  4. Step 4: Simplify right side
    11,353.66x = 98,988,505.90
  5. Step 5: Solve for x
    x = 98,988,505.90/11,353.66
  6. Step 6: Final answer
    x = 8,718.64

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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.