Home / 8,415.45-11,619.45-5,433.03

Finding the Fourth Proportional to 8,415.45, 11,619.45 and 5,433.03

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Solution

The fourth proportional to 8,415.45, 11,619.45 and 5,433.03 is: 7,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.45 : 11,619.45 = 5,433.03 : x
  2. Step 2: Convert to fraction form
    8,415.45/11,619.45 = 5,433.03/x
  3. Step 3: Cross multiply
    8,415.45x = 11,619.45 × 5,433.03
  4. Step 4: Simplify right side
    8,415.45x = 63,128,820.43
  5. Step 5: Solve for x
    x = 63,128,820.43/8,415.45
  6. Step 6: Final answer
    x = 7,501.54

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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.