Home / 13,266.33-18,309.30-8,564.28

Finding the Fourth Proportional to 13,266.33, 18,309.30 and 8,564.28

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Solution

The fourth proportional to 13,266.33, 18,309.30 and 8,564.28 is: 11,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.33 : 18,309.30 = 8,564.28 : x
  2. Step 2: Convert to fraction form
    13,266.33/18,309.30 = 8,564.28/x
  3. Step 3: Cross multiply
    13,266.33x = 18,309.30 × 8,564.28
  4. Step 4: Simplify right side
    13,266.33x = 156,805,971.80
  5. Step 5: Solve for x
    x = 156,805,971.80/13,266.33
  6. Step 6: Final answer
    x = 11,819.85

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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.