Home / 6,987.47-10,481.20-4,789.53

Finding the Fourth Proportional to 6,987.47, 10,481.20 and 4,789.53

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Solution

The fourth proportional to 6,987.47, 10,481.20 and 4,789.53 is: 7,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.47 : 10,481.20 = 4,789.53 : x
  2. Step 2: Convert to fraction form
    6,987.47/10,481.20 = 4,789.53/x
  3. Step 3: Cross multiply
    6,987.47x = 10,481.20 × 4,789.53
  4. Step 4: Simplify right side
    6,987.47x = 50,200,009.86
  5. Step 5: Solve for x
    x = 50,200,009.86/6,987.47
  6. Step 6: Final answer
    x = 7,184.30

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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.