Home / 7,962.16-11,943.51-2,118.78

Finding the Fourth Proportional to 7,962.16, 11,943.51 and 2,118.78

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Solution

The fourth proportional to 7,962.16, 11,943.51 and 2,118.78 is: 3,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.16 : 11,943.51 = 2,118.78 : x
  2. Step 2: Convert to fraction form
    7,962.16/11,943.51 = 2,118.78/x
  3. Step 3: Cross multiply
    7,962.16x = 11,943.51 × 2,118.78
  4. Step 4: Simplify right side
    7,962.16x = 25,305,656.99
  5. Step 5: Solve for x
    x = 25,305,656.99/7,962.16
  6. Step 6: Final answer
    x = 3,178.24

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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.