Home / 7,480.90-10,321.45-4,650.36

Finding the Fourth Proportional to 7,480.90, 10,321.45 and 4,650.36

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Solution

The fourth proportional to 7,480.90, 10,321.45 and 4,650.36 is: 6,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.90 : 10,321.45 = 4,650.36 : x
  2. Step 2: Convert to fraction form
    7,480.90/10,321.45 = 4,650.36/x
  3. Step 3: Cross multiply
    7,480.90x = 10,321.45 × 4,650.36
  4. Step 4: Simplify right side
    7,480.90x = 47,998,458.22
  5. Step 5: Solve for x
    x = 47,998,458.22/7,480.90
  6. Step 6: Final answer
    x = 6,416.13

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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.