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Finding the Fourth Proportional to 19,613.76, 29,398.77 and 8,503.80

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Solution

The fourth proportional to 19,613.76, 29,398.77 and 8,503.80 is: 12,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.76 : 29,398.77 = 8,503.80 : x
  2. Step 2: Convert to fraction form
    19,613.76/29,398.77 = 8,503.80/x
  3. Step 3: Cross multiply
    19,613.76x = 29,398.77 × 8,503.80
  4. Step 4: Simplify right side
    19,613.76x = 250,001,260.33
  5. Step 5: Solve for x
    x = 250,001,260.33/19,613.76
  6. Step 6: Final answer
    x = 12,746.22

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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.