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Finding the Fourth Proportional to 12,346.30, 18,514.05 and 4,948.30

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Solution

The fourth proportional to 12,346.30, 18,514.05 and 4,948.30 is: 7,420.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.30 : 18,514.05 = 4,948.30 : x
  2. Step 2: Convert to fraction form
    12,346.30/18,514.05 = 4,948.30/x
  3. Step 3: Cross multiply
    12,346.30x = 18,514.05 × 4,948.30
  4. Step 4: Simplify right side
    12,346.30x = 91,613,073.62
  5. Step 5: Solve for x
    x = 91,613,073.62/12,346.30
  6. Step 6: Final answer
    x = 7,420.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.