Home / 8,365.26-11,543.22-5,378.87

Finding the Fourth Proportional to 8,365.26, 11,543.22 and 5,378.87

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Solution

The fourth proportional to 8,365.26, 11,543.22 and 5,378.87 is: 7,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.26 : 11,543.22 = 5,378.87 : x
  2. Step 2: Convert to fraction form
    8,365.26/11,543.22 = 5,378.87/x
  3. Step 3: Cross multiply
    8,365.26x = 11,543.22 × 5,378.87
  4. Step 4: Simplify right side
    8,365.26x = 62,089,508.62
  5. Step 5: Solve for x
    x = 62,089,508.62/8,365.26
  6. Step 6: Final answer
    x = 7,422.30

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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.