Home / 11,426.37-15,769.19-6,391.06

Finding the Fourth Proportional to 11,426.37, 15,769.19 and 6,391.06

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Solution

The fourth proportional to 11,426.37, 15,769.19 and 6,391.06 is: 8,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.37 : 15,769.19 = 6,391.06 : x
  2. Step 2: Convert to fraction form
    11,426.37/15,769.19 = 6,391.06/x
  3. Step 3: Cross multiply
    11,426.37x = 15,769.19 × 6,391.06
  4. Step 4: Simplify right side
    11,426.37x = 100,781,816.00
  5. Step 5: Solve for x
    x = 100,781,816.00/11,426.37
  6. Step 6: Final answer
    x = 8,820.11

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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.