Home / 14,165.18-19,560.99-9,138.12

Finding the Fourth Proportional to 14,165.18, 19,560.99 and 9,138.12

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Solution

The fourth proportional to 14,165.18, 19,560.99 and 9,138.12 is: 12,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.18 : 19,560.99 = 9,138.12 : x
  2. Step 2: Convert to fraction form
    14,165.18/19,560.99 = 9,138.12/x
  3. Step 3: Cross multiply
    14,165.18x = 19,560.99 × 9,138.12
  4. Step 4: Simplify right side
    14,165.18x = 178,750,634.85
  5. Step 5: Solve for x
    x = 178,750,634.85/14,165.18
  6. Step 6: Final answer
    x = 12,619.02

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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.