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Finding the Fourth Proportional to 8,995.16, 13,511.94 and 8,469.08

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Solution

The fourth proportional to 8,995.16, 13,511.94 and 8,469.08 is: 12,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.16 : 13,511.94 = 8,469.08 : x
  2. Step 2: Convert to fraction form
    8,995.16/13,511.94 = 8,469.08/x
  3. Step 3: Cross multiply
    8,995.16x = 13,511.94 × 8,469.08
  4. Step 4: Simplify right side
    8,995.16x = 114,433,700.82
  5. Step 5: Solve for x
    x = 114,433,700.82/8,995.16
  6. Step 6: Final answer
    x = 12,721.70

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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.