Home / 12,696.13-17,502.40-8,907.56

Finding the Fourth Proportional to 12,696.13, 17,502.40 and 8,907.56

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Solution

The fourth proportional to 12,696.13, 17,502.40 and 8,907.56 is: 12,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.13 : 17,502.40 = 8,907.56 : x
  2. Step 2: Convert to fraction form
    12,696.13/17,502.40 = 8,907.56/x
  3. Step 3: Cross multiply
    12,696.13x = 17,502.40 × 8,907.56
  4. Step 4: Simplify right side
    12,696.13x = 155,903,667.40
  5. Step 5: Solve for x
    x = 155,903,667.40/12,696.13
  6. Step 6: Final answer
    x = 12,279.62

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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.