Home / 7,987.48-11,008.37-6,500.32

Finding the Fourth Proportional to 7,987.48, 11,008.37 and 6,500.32

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Solution

The fourth proportional to 7,987.48, 11,008.37 and 6,500.32 is: 8,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.48 : 11,008.37 = 6,500.32 : x
  2. Step 2: Convert to fraction form
    7,987.48/11,008.37 = 6,500.32/x
  3. Step 3: Cross multiply
    7,987.48x = 11,008.37 × 6,500.32
  4. Step 4: Simplify right side
    7,987.48x = 71,557,927.68
  5. Step 5: Solve for x
    x = 71,557,927.68/7,987.48
  6. Step 6: Final answer
    x = 8,958.76

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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.