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Finding the Fourth Proportional to 9,798.35, 13,512.39 and 6,443.99

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Solution

The fourth proportional to 9,798.35, 13,512.39 and 6,443.99 is: 8,886.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.35 : 13,512.39 = 6,443.99 : x
  2. Step 2: Convert to fraction form
    9,798.35/13,512.39 = 6,443.99/x
  3. Step 3: Cross multiply
    9,798.35x = 13,512.39 × 6,443.99
  4. Step 4: Simplify right side
    9,798.35x = 87,073,706.04
  5. Step 5: Solve for x
    x = 87,073,706.04/9,798.35
  6. Step 6: Final answer
    x = 8,886.57

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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.