Home / 10,108.54-13,944.38-6,128.81

Finding the Fourth Proportional to 10,108.54, 13,944.38 and 6,128.81

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Solution

The fourth proportional to 10,108.54, 13,944.38 and 6,128.81 is: 8,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.54 : 13,944.38 = 6,128.81 : x
  2. Step 2: Convert to fraction form
    10,108.54/13,944.38 = 6,128.81/x
  3. Step 3: Cross multiply
    10,108.54x = 13,944.38 × 6,128.81
  4. Step 4: Simplify right side
    10,108.54x = 85,462,355.22
  5. Step 5: Solve for x
    x = 85,462,355.22/10,108.54
  6. Step 6: Final answer
    x = 8,454.47

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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.