Home / 14,422.32-19,902.60-8,136.72

Finding the Fourth Proportional to 14,422.32, 19,902.60 and 8,136.72

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Solution

The fourth proportional to 14,422.32, 19,902.60 and 8,136.72 is: 11,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.32 : 19,902.60 = 8,136.72 : x
  2. Step 2: Convert to fraction form
    14,422.32/19,902.60 = 8,136.72/x
  3. Step 3: Cross multiply
    14,422.32x = 19,902.60 × 8,136.72
  4. Step 4: Simplify right side
    14,422.32x = 161,941,883.47
  5. Step 5: Solve for x
    x = 161,941,883.47/14,422.32
  6. Step 6: Final answer
    x = 11,228.56

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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.