Home / 14,855.84-20,457.85-13,906.10

Finding the Fourth Proportional to 14,855.84, 20,457.85 and 13,906.10

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Solution

The fourth proportional to 14,855.84, 20,457.85 and 13,906.10 is: 19,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.84 : 20,457.85 = 13,906.10 : x
  2. Step 2: Convert to fraction form
    14,855.84/20,457.85 = 13,906.10/x
  3. Step 3: Cross multiply
    14,855.84x = 20,457.85 × 13,906.10
  4. Step 4: Simplify right side
    14,855.84x = 284,488,907.89
  5. Step 5: Solve for x
    x = 284,488,907.89/14,855.84
  6. Step 6: Final answer
    x = 19,149.97

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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.