Home / 11,534.00-15,910.70-7,712.21

Finding the Fourth Proportional to 11,534.00, 15,910.70 and 7,712.21

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Solution

The fourth proportional to 11,534.00, 15,910.70 and 7,712.21 is: 10,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,534.00 : 15,910.70 = 7,712.21 : x
  2. Step 2: Convert to fraction form
    11,534.00/15,910.70 = 7,712.21/x
  3. Step 3: Cross multiply
    11,534.00x = 15,910.70 × 7,712.21
  4. Step 4: Simplify right side
    11,534.00x = 122,706,660.86
  5. Step 5: Solve for x
    x = 122,706,660.86/11,534.00
  6. Step 6: Final answer
    x = 10,638.70

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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.