Home / 13,306.58-18,366.92-9,328.68

Finding the Fourth Proportional to 13,306.58, 18,366.92 and 9,328.68

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Solution

The fourth proportional to 13,306.58, 18,366.92 and 9,328.68 is: 12,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.58 : 18,366.92 = 9,328.68 : x
  2. Step 2: Convert to fraction form
    13,306.58/18,366.92 = 9,328.68/x
  3. Step 3: Cross multiply
    13,306.58x = 18,366.92 × 9,328.68
  4. Step 4: Simplify right side
    13,306.58x = 171,339,119.27
  5. Step 5: Solve for x
    x = 171,339,119.27/13,306.58
  6. Step 6: Final answer
    x = 12,876.27

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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.