Home / 8,142.23-12,210.22-3,464.45

Finding the Fourth Proportional to 8,142.23, 12,210.22 and 3,464.45

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Solution

The fourth proportional to 8,142.23, 12,210.22 and 3,464.45 is: 5,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.23 : 12,210.22 = 3,464.45 : x
  2. Step 2: Convert to fraction form
    8,142.23/12,210.22 = 3,464.45/x
  3. Step 3: Cross multiply
    8,142.23x = 12,210.22 × 3,464.45
  4. Step 4: Simplify right side
    8,142.23x = 42,301,685.75
  5. Step 5: Solve for x
    x = 42,301,685.75/8,142.23
  6. Step 6: Final answer
    x = 5,195.34

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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.