Home / 14,347.11-19,800.55-8,380.72

Finding the Fourth Proportional to 14,347.11, 19,800.55 and 8,380.72

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Solution

The fourth proportional to 14,347.11, 19,800.55 and 8,380.72 is: 11,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.11 : 19,800.55 = 8,380.72 : x
  2. Step 2: Convert to fraction form
    14,347.11/19,800.55 = 8,380.72/x
  3. Step 3: Cross multiply
    14,347.11x = 19,800.55 × 8,380.72
  4. Step 4: Simplify right side
    14,347.11x = 165,942,865.40
  5. Step 5: Solve for x
    x = 165,942,865.40/14,347.11
  6. Step 6: Final answer
    x = 11,566.29

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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.