Home / 11,127.62-15,359.28-6,879.98

Finding the Fourth Proportional to 11,127.62, 15,359.28 and 6,879.98

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Solution

The fourth proportional to 11,127.62, 15,359.28 and 6,879.98 is: 9,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.62 : 15,359.28 = 6,879.98 : x
  2. Step 2: Convert to fraction form
    11,127.62/15,359.28 = 6,879.98/x
  3. Step 3: Cross multiply
    11,127.62x = 15,359.28 × 6,879.98
  4. Step 4: Simplify right side
    11,127.62x = 105,671,539.21
  5. Step 5: Solve for x
    x = 105,671,539.21/11,127.62
  6. Step 6: Final answer
    x = 9,496.33

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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.