Home / 7,419.48-10,239.76-4,435.28

Finding the Fourth Proportional to 7,419.48, 10,239.76 and 4,435.28

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Solution

The fourth proportional to 7,419.48, 10,239.76 and 4,435.28 is: 6,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.48 : 10,239.76 = 4,435.28 : x
  2. Step 2: Convert to fraction form
    7,419.48/10,239.76 = 4,435.28/x
  3. Step 3: Cross multiply
    7,419.48x = 10,239.76 × 4,435.28
  4. Step 4: Simplify right side
    7,419.48x = 45,416,202.73
  5. Step 5: Solve for x
    x = 45,416,202.73/7,419.48
  6. Step 6: Final answer
    x = 6,121.21

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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.