Home / 14,107.10-21,166.05-13,885.70

Finding the Fourth Proportional to 14,107.10, 21,166.05 and 13,885.70

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Solution

The fourth proportional to 14,107.10, 21,166.05 and 13,885.70 is: 20,833.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.10 : 21,166.05 = 13,885.70 : x
  2. Step 2: Convert to fraction form
    14,107.10/21,166.05 = 13,885.70/x
  3. Step 3: Cross multiply
    14,107.10x = 21,166.05 × 13,885.70
  4. Step 4: Simplify right side
    14,107.10x = 293,905,420.49
  5. Step 5: Solve for x
    x = 293,905,420.49/14,107.10
  6. Step 6: Final answer
    x = 20,833.87

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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.