Home / 14,273.40-21,410.10-13,908.90

Finding the Fourth Proportional to 14,273.40, 21,410.10 and 13,908.90

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Solution

The fourth proportional to 14,273.40, 21,410.10 and 13,908.90 is: 20,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.40 : 21,410.10 = 13,908.90 : x
  2. Step 2: Convert to fraction form
    14,273.40/21,410.10 = 13,908.90/x
  3. Step 3: Cross multiply
    14,273.40x = 21,410.10 × 13,908.90
  4. Step 4: Simplify right side
    14,273.40x = 297,790,939.89
  5. Step 5: Solve for x
    x = 297,790,939.89/14,273.40
  6. Step 6: Final answer
    x = 20,863.35

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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.