Home / 11,148.22-15,383.85-6,368.71

Finding the Fourth Proportional to 11,148.22, 15,383.85 and 6,368.71

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Solution

The fourth proportional to 11,148.22, 15,383.85 and 6,368.71 is: 8,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.22 : 15,383.85 = 6,368.71 : x
  2. Step 2: Convert to fraction form
    11,148.22/15,383.85 = 6,368.71/x
  3. Step 3: Cross multiply
    11,148.22x = 15,383.85 × 6,368.71
  4. Step 4: Simplify right side
    11,148.22x = 97,975,279.33
  5. Step 5: Solve for x
    x = 97,975,279.33/11,148.22
  6. Step 6: Final answer
    x = 8,788.42

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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.