Home / 11,760.39-16,224.21-7,221.51

Finding the Fourth Proportional to 11,760.39, 16,224.21 and 7,221.51

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Solution

The fourth proportional to 11,760.39, 16,224.21 and 7,221.51 is: 9,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.39 : 16,224.21 = 7,221.51 : x
  2. Step 2: Convert to fraction form
    11,760.39/16,224.21 = 7,221.51/x
  3. Step 3: Cross multiply
    11,760.39x = 16,224.21 × 7,221.51
  4. Step 4: Simplify right side
    11,760.39x = 117,163,294.76
  5. Step 5: Solve for x
    x = 117,163,294.76/11,760.39
  6. Step 6: Final answer
    x = 9,962.53

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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.