Home / 14,342.40-19,789.05-8,370.66

Finding the Fourth Proportional to 14,342.40, 19,789.05 and 8,370.66

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Solution

The fourth proportional to 14,342.40, 19,789.05 and 8,370.66 is: 11,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.40 : 19,789.05 = 8,370.66 : x
  2. Step 2: Convert to fraction form
    14,342.40/19,789.05 = 8,370.66/x
  3. Step 3: Cross multiply
    14,342.40x = 19,789.05 × 8,370.66
  4. Step 4: Simplify right side
    14,342.40x = 165,647,409.27
  5. Step 5: Solve for x
    x = 165,647,409.27/14,342.40
  6. Step 6: Final answer
    x = 11,549.49

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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.