Home / 8,342.79-12,518.43-5,222.26

Finding the Fourth Proportional to 8,342.79, 12,518.43 and 5,222.26

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Solution

The fourth proportional to 8,342.79, 12,518.43 and 5,222.26 is: 7,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.79 : 12,518.43 = 5,222.26 : x
  2. Step 2: Convert to fraction form
    8,342.79/12,518.43 = 5,222.26/x
  3. Step 3: Cross multiply
    8,342.79x = 12,518.43 × 5,222.26
  4. Step 4: Simplify right side
    8,342.79x = 65,374,496.25
  5. Step 5: Solve for x
    x = 65,374,496.25/8,342.79
  6. Step 6: Final answer
    x = 7,836.05

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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.