Home / 7,987.86-11,027.07-5,005.26

Finding the Fourth Proportional to 7,987.86, 11,027.07 and 5,005.26

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Solution

The fourth proportional to 7,987.86, 11,027.07 and 5,005.26 is: 6,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.86 : 11,027.07 = 5,005.26 : x
  2. Step 2: Convert to fraction form
    7,987.86/11,027.07 = 5,005.26/x
  3. Step 3: Cross multiply
    7,987.86x = 11,027.07 × 5,005.26
  4. Step 4: Simplify right side
    7,987.86x = 55,193,352.39
  5. Step 5: Solve for x
    x = 55,193,352.39/7,987.86
  6. Step 6: Final answer
    x = 6,909.65

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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.