Home / 13,719.49-18,933.24-8,411.23

Finding the Fourth Proportional to 13,719.49, 18,933.24 and 8,411.23

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Solution

The fourth proportional to 13,719.49, 18,933.24 and 8,411.23 is: 11,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.49 : 18,933.24 = 8,411.23 : x
  2. Step 2: Convert to fraction form
    13,719.49/18,933.24 = 8,411.23/x
  3. Step 3: Cross multiply
    13,719.49x = 18,933.24 × 8,411.23
  4. Step 4: Simplify right side
    13,719.49x = 159,251,836.29
  5. Step 5: Solve for x
    x = 159,251,836.29/13,719.49
  6. Step 6: Final answer
    x = 11,607.71

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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.