Home / 14,853.12-20,497.53-8,138.62

Finding the Fourth Proportional to 14,853.12, 20,497.53 and 8,138.62

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Solution

The fourth proportional to 14,853.12, 20,497.53 and 8,138.62 is: 11,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,853.12 : 20,497.53 = 8,138.62 : x
  2. Step 2: Convert to fraction form
    14,853.12/20,497.53 = 8,138.62/x
  3. Step 3: Cross multiply
    14,853.12x = 20,497.53 × 8,138.62
  4. Step 4: Simplify right side
    14,853.12x = 166,821,607.61
  5. Step 5: Solve for x
    x = 166,821,607.61/14,853.12
  6. Step 6: Final answer
    x = 11,231.42

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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.