Home / 10,273.96-15,403.86-5,279.32

Finding the Fourth Proportional to 10,273.96, 15,403.86 and 5,279.32

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Solution

The fourth proportional to 10,273.96, 15,403.86 and 5,279.32 is: 7,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,273.96 : 15,403.86 = 5,279.32 : x
  2. Step 2: Convert to fraction form
    10,273.96/15,403.86 = 5,279.32/x
  3. Step 3: Cross multiply
    10,273.96x = 15,403.86 × 5,279.32
  4. Step 4: Simplify right side
    10,273.96x = 81,321,906.18
  5. Step 5: Solve for x
    x = 81,321,906.18/10,273.96
  6. Step 6: Final answer
    x = 7,915.34

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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.