Home / 11,331.26-15,638.61-7,083.69

Finding the Fourth Proportional to 11,331.26, 15,638.61 and 7,083.69

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Solution

The fourth proportional to 11,331.26, 15,638.61 and 7,083.69 is: 9,776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.26 : 15,638.61 = 7,083.69 : x
  2. Step 2: Convert to fraction form
    11,331.26/15,638.61 = 7,083.69/x
  3. Step 3: Cross multiply
    11,331.26x = 15,638.61 × 7,083.69
  4. Step 4: Simplify right side
    11,331.26x = 110,779,065.27
  5. Step 5: Solve for x
    x = 110,779,065.27/11,331.26
  6. Step 6: Final answer
    x = 9,776.41

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Half scale
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Double scale
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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.