Home / 11,382.48-17,109.36-7,511.76

Finding the Fourth Proportional to 11,382.48, 17,109.36 and 7,511.76

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Solution

The fourth proportional to 11,382.48, 17,109.36 and 7,511.76 is: 11,291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.48 : 17,109.36 = 7,511.76 : x
  2. Step 2: Convert to fraction form
    11,382.48/17,109.36 = 7,511.76/x
  3. Step 3: Cross multiply
    11,382.48x = 17,109.36 × 7,511.76
  4. Step 4: Simplify right side
    11,382.48x = 128,521,406.07
  5. Step 5: Solve for x
    x = 128,521,406.07/11,382.48
  6. Step 6: Final answer
    x = 11,291.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.