Home / 14,616.72-21,879.78-11,820.06

Finding the Fourth Proportional to 14,616.72, 21,879.78 and 11,820.06

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Solution

The fourth proportional to 14,616.72, 21,879.78 and 11,820.06 is: 17,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.72 : 21,879.78 = 11,820.06 : x
  2. Step 2: Convert to fraction form
    14,616.72/21,879.78 = 11,820.06/x
  3. Step 3: Cross multiply
    14,616.72x = 21,879.78 × 11,820.06
  4. Step 4: Simplify right side
    14,616.72x = 258,620,312.39
  5. Step 5: Solve for x
    x = 258,620,312.39/14,616.72
  6. Step 6: Final answer
    x = 17,693.46

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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.