Home / 14,218.72-21,334.24-7,637.20

Finding the Fourth Proportional to 14,218.72, 21,334.24 and 7,637.20

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Solution

The fourth proportional to 14,218.72, 21,334.24 and 7,637.20 is: 11,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.72 : 21,334.24 = 7,637.20 : x
  2. Step 2: Convert to fraction form
    14,218.72/21,334.24 = 7,637.20/x
  3. Step 3: Cross multiply
    14,218.72x = 21,334.24 × 7,637.20
  4. Step 4: Simplify right side
    14,218.72x = 162,933,857.73
  5. Step 5: Solve for x
    x = 162,933,857.73/14,218.72
  6. Step 6: Final answer
    x = 11,459.11

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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.