Home / 13,259.62-18,293.73-8,222.03

Finding the Fourth Proportional to 13,259.62, 18,293.73 and 8,222.03

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Solution

The fourth proportional to 13,259.62, 18,293.73 and 8,222.03 is: 11,343.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.62 : 18,293.73 = 8,222.03 : x
  2. Step 2: Convert to fraction form
    13,259.62/18,293.73 = 8,222.03/x
  3. Step 3: Cross multiply
    13,259.62x = 18,293.73 × 8,222.03
  4. Step 4: Simplify right side
    13,259.62x = 150,411,555.76
  5. Step 5: Solve for x
    x = 150,411,555.76/13,259.62
  6. Step 6: Final answer
    x = 11,343.58

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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.