Home / 8,253.45-11,389.68-5,109.03

Finding the Fourth Proportional to 8,253.45, 11,389.68 and 5,109.03

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Solution

The fourth proportional to 8,253.45, 11,389.68 and 5,109.03 is: 7,050.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.45 : 11,389.68 = 5,109.03 : x
  2. Step 2: Convert to fraction form
    8,253.45/11,389.68 = 5,109.03/x
  3. Step 3: Cross multiply
    8,253.45x = 11,389.68 × 5,109.03
  4. Step 4: Simplify right side
    8,253.45x = 58,190,216.81
  5. Step 5: Solve for x
    x = 58,190,216.81/8,253.45
  6. Step 6: Final answer
    x = 7,050.41

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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.