Home / 8,346.30-12,518.64-2,190.30

Finding the Fourth Proportional to 8,346.30, 12,518.64 and 2,190.30

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Solution

The fourth proportional to 8,346.30, 12,518.64 and 2,190.30 is: 3,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.30 : 12,518.64 = 2,190.30 : x
  2. Step 2: Convert to fraction form
    8,346.30/12,518.64 = 2,190.30/x
  3. Step 3: Cross multiply
    8,346.30x = 12,518.64 × 2,190.30
  4. Step 4: Simplify right side
    8,346.30x = 27,419,577.19
  5. Step 5: Solve for x
    x = 27,419,577.19/8,346.30
  6. Step 6: Final answer
    x = 3,285.24

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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.