Home / 18,809.34-28,215.36-6,329.31

Finding the Fourth Proportional to 18,809.34, 28,215.36 and 6,329.31

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Solution

The fourth proportional to 18,809.34, 28,215.36 and 6,329.31 is: 9,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.34 : 28,215.36 = 6,329.31 : x
  2. Step 2: Convert to fraction form
    18,809.34/28,215.36 = 6,329.31/x
  3. Step 3: Cross multiply
    18,809.34x = 28,215.36 × 6,329.31
  4. Step 4: Simplify right side
    18,809.34x = 178,583,760.20
  5. Step 5: Solve for x
    x = 178,583,760.20/18,809.34
  6. Step 6: Final answer
    x = 9,494.42

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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.