Home / 8,814.20-13,235.70-5,905.40

Finding the Fourth Proportional to 8,814.20, 13,235.70 and 5,905.40

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Solution

The fourth proportional to 8,814.20, 13,235.70 and 5,905.40 is: 8,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.20 : 13,235.70 = 5,905.40 : x
  2. Step 2: Convert to fraction form
    8,814.20/13,235.70 = 5,905.40/x
  3. Step 3: Cross multiply
    8,814.20x = 13,235.70 × 5,905.40
  4. Step 4: Simplify right side
    8,814.20x = 78,162,102.78
  5. Step 5: Solve for x
    x = 78,162,102.78/8,814.20
  6. Step 6: Final answer
    x = 8,867.75

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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.