Home / 7,415.09-10,231.34-4,432.26

Finding the Fourth Proportional to 7,415.09, 10,231.34 and 4,432.26

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Solution

The fourth proportional to 7,415.09, 10,231.34 and 4,432.26 is: 6,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.09 : 10,231.34 = 4,432.26 : x
  2. Step 2: Convert to fraction form
    7,415.09/10,231.34 = 4,432.26/x
  3. Step 3: Cross multiply
    7,415.09x = 10,231.34 × 4,432.26
  4. Step 4: Simplify right side
    7,415.09x = 45,347,936.87
  5. Step 5: Solve for x
    x = 45,347,936.87/7,415.09
  6. Step 6: Final answer
    x = 6,115.63

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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.