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Finding the Fourth Proportional to 8,998.43, 13,430.98 and 8,444.39

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Solution

The fourth proportional to 8,998.43, 13,430.98 and 8,444.39 is: 12,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.43 : 13,430.98 = 8,444.39 : x
  2. Step 2: Convert to fraction form
    8,998.43/13,430.98 = 8,444.39/x
  3. Step 3: Cross multiply
    8,998.43x = 13,430.98 × 8,444.39
  4. Step 4: Simplify right side
    8,998.43x = 113,416,376.60
  5. Step 5: Solve for x
    x = 113,416,376.60/8,998.43
  6. Step 6: Final answer
    x = 12,604.03

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.