Home / 14,126.13-21,167.30-8,921.07

Finding the Fourth Proportional to 14,126.13, 21,167.30 and 8,921.07

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Solution

The fourth proportional to 14,126.13, 21,167.30 and 8,921.07 is: 13,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.13 : 21,167.30 = 8,921.07 : x
  2. Step 2: Convert to fraction form
    14,126.13/21,167.30 = 8,921.07/x
  3. Step 3: Cross multiply
    14,126.13x = 21,167.30 × 8,921.07
  4. Step 4: Simplify right side
    14,126.13x = 188,834,920.41
  5. Step 5: Solve for x
    x = 188,834,920.41/14,126.13
  6. Step 6: Final answer
    x = 13,367.77

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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.