Home / 12,861.66-19,288.56-4,539.73

Finding the Fourth Proportional to 12,861.66, 19,288.56 and 4,539.73

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Solution

The fourth proportional to 12,861.66, 19,288.56 and 4,539.73 is: 6,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.66 : 19,288.56 = 4,539.73 : x
  2. Step 2: Convert to fraction form
    12,861.66/19,288.56 = 4,539.73/x
  3. Step 3: Cross multiply
    12,861.66x = 19,288.56 × 4,539.73
  4. Step 4: Simplify right side
    12,861.66x = 87,564,854.49
  5. Step 5: Solve for x
    x = 87,564,854.49/12,861.66
  6. Step 6: Final answer
    x = 6,808.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.