Home / 8,122.42-12,184.56-4,430.05

Finding the Fourth Proportional to 8,122.42, 12,184.56 and 4,430.05

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Solution

The fourth proportional to 8,122.42, 12,184.56 and 4,430.05 is: 6,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.42 : 12,184.56 = 4,430.05 : x
  2. Step 2: Convert to fraction form
    8,122.42/12,184.56 = 4,430.05/x
  3. Step 3: Cross multiply
    8,122.42x = 12,184.56 × 4,430.05
  4. Step 4: Simplify right side
    8,122.42x = 53,978,210.03
  5. Step 5: Solve for x
    x = 53,978,210.03/8,122.42
  6. Step 6: Final answer
    x = 6,645.58

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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.