Home / 10,229.18-14,121-7,712.33

Finding the Fourth Proportional to 10,229.18, 14,121 and 7,712.33

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Solution

The fourth proportional to 10,229.18, 14,121 and 7,712.33 is: 10,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,229.18 : 14,121 = 7,712.33 : x
  2. Step 2: Convert to fraction form
    10,229.18/14,121 = 7,712.33/x
  3. Step 3: Cross multiply
    10,229.18x = 14,121 × 7,712.33
  4. Step 4: Simplify right side
    10,229.18x = 108,905,741.33
  5. Step 5: Solve for x
    x = 108,905,741.33/10,229.18
  6. Step 6: Final answer
    x = 10,646.58

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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.