Home / 11,230.48-15,511.80-7,705.36

Finding the Fourth Proportional to 11,230.48, 15,511.80 and 7,705.36

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Solution

The fourth proportional to 11,230.48, 15,511.80 and 7,705.36 is: 10,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.48 : 15,511.80 = 7,705.36 : x
  2. Step 2: Convert to fraction form
    11,230.48/15,511.80 = 7,705.36/x
  3. Step 3: Cross multiply
    11,230.48x = 15,511.80 × 7,705.36
  4. Step 4: Simplify right side
    11,230.48x = 119,524,003.25
  5. Step 5: Solve for x
    x = 119,524,003.25/11,230.48
  6. Step 6: Final answer
    x = 10,642.82

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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.