Home / 10,249.80-15,362.88-4,987.44

Finding the Fourth Proportional to 10,249.80, 15,362.88 and 4,987.44

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Solution

The fourth proportional to 10,249.80, 15,362.88 and 4,987.44 is: 7,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.80 : 15,362.88 = 4,987.44 : x
  2. Step 2: Convert to fraction form
    10,249.80/15,362.88 = 4,987.44/x
  3. Step 3: Cross multiply
    10,249.80x = 15,362.88 × 4,987.44
  4. Step 4: Simplify right side
    10,249.80x = 76,621,442.23
  5. Step 5: Solve for x
    x = 76,621,442.23/10,249.80
  6. Step 6: Final answer
    x = 7,475.41

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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.