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Finding the Fourth Proportional to 9,019.72, 12,440.95 and 8,276.14

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Solution

The fourth proportional to 9,019.72, 12,440.95 and 8,276.14 is: 11,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.72 : 12,440.95 = 8,276.14 : x
  2. Step 2: Convert to fraction form
    9,019.72/12,440.95 = 8,276.14/x
  3. Step 3: Cross multiply
    9,019.72x = 12,440.95 × 8,276.14
  4. Step 4: Simplify right side
    9,019.72x = 102,963,043.93
  5. Step 5: Solve for x
    x = 102,963,043.93/9,019.72
  6. Step 6: Final answer
    x = 11,415.33

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Double scale
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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.