Home / 14,171.40-19,560.88-9,135.62

Finding the Fourth Proportional to 14,171.40, 19,560.88 and 9,135.62

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Solution

The fourth proportional to 14,171.40, 19,560.88 and 9,135.62 is: 12,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.40 : 19,560.88 = 9,135.62 : x
  2. Step 2: Convert to fraction form
    14,171.40/19,560.88 = 9,135.62/x
  3. Step 3: Cross multiply
    14,171.40x = 19,560.88 × 9,135.62
  4. Step 4: Simplify right side
    14,171.40x = 178,700,766.55
  5. Step 5: Solve for x
    x = 178,700,766.55/14,171.40
  6. Step 6: Final answer
    x = 12,609.96

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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.