Home / 8,445.50-11,655.51-4,720.22

Finding the Fourth Proportional to 8,445.50, 11,655.51 and 4,720.22

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Solution

The fourth proportional to 8,445.50, 11,655.51 and 4,720.22 is: 6,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.50 : 11,655.51 = 4,720.22 : x
  2. Step 2: Convert to fraction form
    8,445.50/11,655.51 = 4,720.22/x
  3. Step 3: Cross multiply
    8,445.50x = 11,655.51 × 4,720.22
  4. Step 4: Simplify right side
    8,445.50x = 55,016,571.41
  5. Step 5: Solve for x
    x = 55,016,571.41/8,445.50
  6. Step 6: Final answer
    x = 6,514.31

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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.