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Finding the Fourth Proportional to 12,486.84, 17,232.84 and 7,452.60

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Solution

The fourth proportional to 12,486.84, 17,232.84 and 7,452.60 is: 10,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.84 : 17,232.84 = 7,452.60 : x
  2. Step 2: Convert to fraction form
    12,486.84/17,232.84 = 7,452.60/x
  3. Step 3: Cross multiply
    12,486.84x = 17,232.84 × 7,452.60
  4. Step 4: Simplify right side
    12,486.84x = 128,429,463.38
  5. Step 5: Solve for x
    x = 128,429,463.38/12,486.84
  6. Step 6: Final answer
    x = 10,285.19

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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.