Home / 13,243.55-19,864.85-3,382.74

Finding the Fourth Proportional to 13,243.55, 19,864.85 and 3,382.74

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Solution

The fourth proportional to 13,243.55, 19,864.85 and 3,382.74 is: 5,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.55 : 19,864.85 = 3,382.74 : x
  2. Step 2: Convert to fraction form
    13,243.55/19,864.85 = 3,382.74/x
  3. Step 3: Cross multiply
    13,243.55x = 19,864.85 × 3,382.74
  4. Step 4: Simplify right side
    13,243.55x = 67,197,605.78
  5. Step 5: Solve for x
    x = 67,197,605.78/13,243.55
  6. Step 6: Final answer
    x = 5,073.99

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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.