Home / 14,789.45-20,408.63-8,073.74

Finding the Fourth Proportional to 14,789.45, 20,408.63 and 8,073.74

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Solution

The fourth proportional to 14,789.45, 20,408.63 and 8,073.74 is: 11,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.45 : 20,408.63 = 8,073.74 : x
  2. Step 2: Convert to fraction form
    14,789.45/20,408.63 = 8,073.74/x
  3. Step 3: Cross multiply
    14,789.45x = 20,408.63 × 8,073.74
  4. Step 4: Simplify right side
    14,789.45x = 164,773,983.03
  5. Step 5: Solve for x
    x = 164,773,983.03/14,789.45
  6. Step 6: Final answer
    x = 11,141.32

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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.