Home / 7,963.21-10,987.45-4,819.33

Finding the Fourth Proportional to 7,963.21, 10,987.45 and 4,819.33

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Solution

The fourth proportional to 7,963.21, 10,987.45 and 4,819.33 is: 6,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.21 : 10,987.45 = 4,819.33 : x
  2. Step 2: Convert to fraction form
    7,963.21/10,987.45 = 4,819.33/x
  3. Step 3: Cross multiply
    7,963.21x = 10,987.45 × 4,819.33
  4. Step 4: Simplify right side
    7,963.21x = 52,952,147.41
  5. Step 5: Solve for x
    x = 52,952,147.41/7,963.21
  6. Step 6: Final answer
    x = 6,649.60

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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.