Home / 11,109.00-15,331.86-6,330.66

Finding the Fourth Proportional to 11,109.00, 15,331.86 and 6,330.66

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Solution

The fourth proportional to 11,109.00, 15,331.86 and 6,330.66 is: 8,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.00 : 15,331.86 = 6,330.66 : x
  2. Step 2: Convert to fraction form
    11,109.00/15,331.86 = 6,330.66/x
  3. Step 3: Cross multiply
    11,109.00x = 15,331.86 × 6,330.66
  4. Step 4: Simplify right side
    11,109.00x = 97,060,846.89
  5. Step 5: Solve for x
    x = 97,060,846.89/11,109.00
  6. Step 6: Final answer
    x = 8,737.14

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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.