Home / 14,105.54-21,139.99-5,776.11

Finding the Fourth Proportional to 14,105.54, 21,139.99 and 5,776.11

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Solution

The fourth proportional to 14,105.54, 21,139.99 and 5,776.11 is: 8,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.54 : 21,139.99 = 5,776.11 : x
  2. Step 2: Convert to fraction form
    14,105.54/21,139.99 = 5,776.11/x
  3. Step 3: Cross multiply
    14,105.54x = 21,139.99 × 5,776.11
  4. Step 4: Simplify right side
    14,105.54x = 122,106,893.20
  5. Step 5: Solve for x
    x = 122,106,893.20/14,105.54
  6. Step 6: Final answer
    x = 8,656.66

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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.