Home / 7,917.48-11,874.84-2,987.16

Finding the Fourth Proportional to 7,917.48, 11,874.84 and 2,987.16

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Solution

The fourth proportional to 7,917.48, 11,874.84 and 2,987.16 is: 4,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.48 : 11,874.84 = 2,987.16 : x
  2. Step 2: Convert to fraction form
    7,917.48/11,874.84 = 2,987.16/x
  3. Step 3: Cross multiply
    7,917.48x = 11,874.84 × 2,987.16
  4. Step 4: Simplify right side
    7,917.48x = 35,472,047.05
  5. Step 5: Solve for x
    x = 35,472,047.05/7,917.48
  6. Step 6: Final answer
    x = 4,480.22

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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.