Home / 9,159.40-13,739.10-3,313.90

Finding the Fourth Proportional to 9,159.40, 13,739.10 and 3,313.90

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Solution

The fourth proportional to 9,159.40, 13,739.10 and 3,313.90 is: 4,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.40 : 13,739.10 = 3,313.90 : x
  2. Step 2: Convert to fraction form
    9,159.40/13,739.10 = 3,313.90/x
  3. Step 3: Cross multiply
    9,159.40x = 13,739.10 × 3,313.90
  4. Step 4: Simplify right side
    9,159.40x = 45,530,003.49
  5. Step 5: Solve for x
    x = 45,530,003.49/9,159.40
  6. Step 6: Final answer
    x = 4,970.85

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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.