Home / 13,780.44-19,011.35-8,998.74

Finding the Fourth Proportional to 13,780.44, 19,011.35 and 8,998.74

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Solution

The fourth proportional to 13,780.44, 19,011.35 and 8,998.74 is: 12,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.44 : 19,011.35 = 8,998.74 : x
  2. Step 2: Convert to fraction form
    13,780.44/19,011.35 = 8,998.74/x
  3. Step 3: Cross multiply
    13,780.44x = 19,011.35 × 8,998.74
  4. Step 4: Simplify right side
    13,780.44x = 171,078,218.20
  5. Step 5: Solve for x
    x = 171,078,218.20/13,780.44
  6. Step 6: Final answer
    x = 12,414.57

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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.