Home / 14,151.40-21,227.10-13,786.90

Finding the Fourth Proportional to 14,151.40, 21,227.10 and 13,786.90

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Solution

The fourth proportional to 14,151.40, 21,227.10 and 13,786.90 is: 20,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.40 : 21,227.10 = 13,786.90 : x
  2. Step 2: Convert to fraction form
    14,151.40/21,227.10 = 13,786.90/x
  3. Step 3: Cross multiply
    14,151.40x = 21,227.10 × 13,786.90
  4. Step 4: Simplify right side
    14,151.40x = 292,655,904.99
  5. Step 5: Solve for x
    x = 292,655,904.99/14,151.40
  6. Step 6: Final answer
    x = 20,680.35

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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.