Home / 8,420.41-12,634.25-4,520.26

Finding the Fourth Proportional to 8,420.41, 12,634.25 and 4,520.26

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Solution

The fourth proportional to 8,420.41, 12,634.25 and 4,520.26 is: 6,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.41 : 12,634.25 = 4,520.26 : x
  2. Step 2: Convert to fraction form
    8,420.41/12,634.25 = 4,520.26/x
  3. Step 3: Cross multiply
    8,420.41x = 12,634.25 × 4,520.26
  4. Step 4: Simplify right side
    8,420.41x = 57,110,055.17
  5. Step 5: Solve for x
    x = 57,110,055.17/8,420.41
  6. Step 6: Final answer
    x = 6,782.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.