Home / 13,566.33-18,720.54-8,262.86

Finding the Fourth Proportional to 13,566.33, 18,720.54 and 8,262.86

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Solution

The fourth proportional to 13,566.33, 18,720.54 and 8,262.86 is: 11,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.33 : 18,720.54 = 8,262.86 : x
  2. Step 2: Convert to fraction form
    13,566.33/18,720.54 = 8,262.86/x
  3. Step 3: Cross multiply
    13,566.33x = 18,720.54 × 8,262.86
  4. Step 4: Simplify right side
    13,566.33x = 154,685,107.54
  5. Step 5: Solve for x
    x = 154,685,107.54/13,566.33
  6. Step 6: Final answer
    x = 11,402.13

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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.