Home / 14,577.89-20,115.41-8,203.59

Finding the Fourth Proportional to 14,577.89, 20,115.41 and 8,203.59

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Solution

The fourth proportional to 14,577.89, 20,115.41 and 8,203.59 is: 11,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.89 : 20,115.41 = 8,203.59 : x
  2. Step 2: Convert to fraction form
    14,577.89/20,115.41 = 8,203.59/x
  3. Step 3: Cross multiply
    14,577.89x = 20,115.41 × 8,203.59
  4. Step 4: Simplify right side
    14,577.89x = 165,018,535.30
  5. Step 5: Solve for x
    x = 165,018,535.30/14,577.89
  6. Step 6: Final answer
    x = 11,319.79

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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.