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Finding the Fourth Proportional to 14,393.43, 19,860.30 and 8,019.86

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Solution

The fourth proportional to 14,393.43, 19,860.30 and 8,019.86 is: 11,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.43 : 19,860.30 = 8,019.86 : x
  2. Step 2: Convert to fraction form
    14,393.43/19,860.30 = 8,019.86/x
  3. Step 3: Cross multiply
    14,393.43x = 19,860.30 × 8,019.86
  4. Step 4: Simplify right side
    14,393.43x = 159,276,825.56
  5. Step 5: Solve for x
    x = 159,276,825.56/14,393.43
  6. Step 6: Final answer
    x = 11,065.94

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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.