Home / 10,945.50-15,105.60-6,231.30

Finding the Fourth Proportional to 10,945.50, 15,105.60 and 6,231.30

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Solution

The fourth proportional to 10,945.50, 15,105.60 and 6,231.30 is: 8,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.50 : 15,105.60 = 6,231.30 : x
  2. Step 2: Convert to fraction form
    10,945.50/15,105.60 = 6,231.30/x
  3. Step 3: Cross multiply
    10,945.50x = 15,105.60 × 6,231.30
  4. Step 4: Simplify right side
    10,945.50x = 94,127,525.28
  5. Step 5: Solve for x
    x = 94,127,525.28/10,945.50
  6. Step 6: Final answer
    x = 8,599.66

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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.