Home / 14,122.72-21,176.84-7,462.79

Finding the Fourth Proportional to 14,122.72, 21,176.84 and 7,462.79

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Solution

The fourth proportional to 14,122.72, 21,176.84 and 7,462.79 is: 11,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.72 : 21,176.84 = 7,462.79 : x
  2. Step 2: Convert to fraction form
    14,122.72/21,176.84 = 7,462.79/x
  3. Step 3: Cross multiply
    14,122.72x = 21,176.84 × 7,462.79
  4. Step 4: Simplify right side
    14,122.72x = 158,038,309.78
  5. Step 5: Solve for x
    x = 158,038,309.78/14,122.72
  6. Step 6: Final answer
    x = 11,190.36

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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.