Home / 13,574.48-18,732.79-8,269.30

Finding the Fourth Proportional to 13,574.48, 18,732.79 and 8,269.30

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Solution

The fourth proportional to 13,574.48, 18,732.79 and 8,269.30 is: 11,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.48 : 18,732.79 = 8,269.30 : x
  2. Step 2: Convert to fraction form
    13,574.48/18,732.79 = 8,269.30/x
  3. Step 3: Cross multiply
    13,574.48x = 18,732.79 × 8,269.30
  4. Step 4: Simplify right side
    13,574.48x = 154,906,948.03
  5. Step 5: Solve for x
    x = 154,906,948.03/13,574.48
  6. Step 6: Final answer
    x = 11,411.63

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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.