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Finding the Fourth Proportional to 10,409.88, 15,613.08 and 4,863.80

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Solution

The fourth proportional to 10,409.88, 15,613.08 and 4,863.80 is: 7,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.88 : 15,613.08 = 4,863.80 : x
  2. Step 2: Convert to fraction form
    10,409.88/15,613.08 = 4,863.80/x
  3. Step 3: Cross multiply
    10,409.88x = 15,613.08 × 4,863.80
  4. Step 4: Simplify right side
    10,409.88x = 75,938,898.50
  5. Step 5: Solve for x
    x = 75,938,898.50/10,409.88
  6. Step 6: Final answer
    x = 7,294.89

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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.