Home / 9,276.30-13,914.45-5,390.70

Finding the Fourth Proportional to 9,276.30, 13,914.45 and 5,390.70

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Solution

The fourth proportional to 9,276.30, 13,914.45 and 5,390.70 is: 8,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,276.30 : 13,914.45 = 5,390.70 : x
  2. Step 2: Convert to fraction form
    9,276.30/13,914.45 = 5,390.70/x
  3. Step 3: Cross multiply
    9,276.30x = 13,914.45 × 5,390.70
  4. Step 4: Simplify right side
    9,276.30x = 75,008,625.62
  5. Step 5: Solve for x
    x = 75,008,625.62/9,276.30
  6. Step 6: Final answer
    x = 8,086.05

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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.