Home / 14,138.30-19,502.21-10,164.80

Finding the Fourth Proportional to 14,138.30, 19,502.21 and 10,164.80

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Solution

The fourth proportional to 14,138.30, 19,502.21 and 10,164.80 is: 14,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.30 : 19,502.21 = 10,164.80 : x
  2. Step 2: Convert to fraction form
    14,138.30/19,502.21 = 10,164.80/x
  3. Step 3: Cross multiply
    14,138.30x = 19,502.21 × 10,164.80
  4. Step 4: Simplify right side
    14,138.30x = 198,235,915.87
  5. Step 5: Solve for x
    x = 198,235,915.87/14,138.30
  6. Step 6: Final answer
    x = 14,021.20

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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.