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Finding the Fourth Proportional to 12,232.69, 16,881.41 and 6,643.69

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Solution

The fourth proportional to 12,232.69, 16,881.41 and 6,643.69 is: 9,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.69 : 16,881.41 = 6,643.69 : x
  2. Step 2: Convert to fraction form
    12,232.69/16,881.41 = 6,643.69/x
  3. Step 3: Cross multiply
    12,232.69x = 16,881.41 × 6,643.69
  4. Step 4: Simplify right side
    12,232.69x = 112,154,829.21
  5. Step 5: Solve for x
    x = 112,154,829.21/12,232.69
  6. Step 6: Final answer
    x = 9,168.45

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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.