Home / 10,449.36-15,657.60-6,279.48

Finding the Fourth Proportional to 10,449.36, 15,657.60 and 6,279.48

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Solution

The fourth proportional to 10,449.36, 15,657.60 and 6,279.48 is: 9,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.36 : 15,657.60 = 6,279.48 : x
  2. Step 2: Convert to fraction form
    10,449.36/15,657.60 = 6,279.48/x
  3. Step 3: Cross multiply
    10,449.36x = 15,657.60 × 6,279.48
  4. Step 4: Simplify right side
    10,449.36x = 98,321,586.05
  5. Step 5: Solve for x
    x = 98,321,586.05/10,449.36
  6. Step 6: Final answer
    x = 9,409.34

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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.