Home / 14,120.82-19,487.66-8,152.74

Finding the Fourth Proportional to 14,120.82, 19,487.66 and 8,152.74

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Solution

The fourth proportional to 14,120.82, 19,487.66 and 8,152.74 is: 11,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.82 : 19,487.66 = 8,152.74 : x
  2. Step 2: Convert to fraction form
    14,120.82/19,487.66 = 8,152.74/x
  3. Step 3: Cross multiply
    14,120.82x = 19,487.66 × 8,152.74
  4. Step 4: Simplify right side
    14,120.82x = 158,877,784.42
  5. Step 5: Solve for x
    x = 158,877,784.42/14,120.82
  6. Step 6: Final answer
    x = 11,251.31

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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.