Home / 12,904.71-17,768.77-11,302.12

Finding the Fourth Proportional to 12,904.71, 17,768.77 and 11,302.12

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Solution

The fourth proportional to 12,904.71, 17,768.77 and 11,302.12 is: 15,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.71 : 17,768.77 = 11,302.12 : x
  2. Step 2: Convert to fraction form
    12,904.71/17,768.77 = 11,302.12/x
  3. Step 3: Cross multiply
    12,904.71x = 17,768.77 × 11,302.12
  4. Step 4: Simplify right side
    12,904.71x = 200,824,770.79
  5. Step 5: Solve for x
    x = 200,824,770.79/12,904.71
  6. Step 6: Final answer
    x = 15,562.13

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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.