Home / 10,879.97-15,011.66-6,403.37

Finding the Fourth Proportional to 10,879.97, 15,011.66 and 6,403.37

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Solution

The fourth proportional to 10,879.97, 15,011.66 and 6,403.37 is: 8,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.97 : 15,011.66 = 6,403.37 : x
  2. Step 2: Convert to fraction form
    10,879.97/15,011.66 = 6,403.37/x
  3. Step 3: Cross multiply
    10,879.97x = 15,011.66 × 6,403.37
  4. Step 4: Simplify right side
    10,879.97x = 96,125,154.24
  5. Step 5: Solve for x
    x = 96,125,154.24/10,879.97
  6. Step 6: Final answer
    x = 8,835.06

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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.