Home / 8,994.20-13,491.30-7,900.70

Finding the Fourth Proportional to 8,994.20, 13,491.30 and 7,900.70

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Solution

The fourth proportional to 8,994.20, 13,491.30 and 7,900.70 is: 11,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.20 : 13,491.30 = 7,900.70 : x
  2. Step 2: Convert to fraction form
    8,994.20/13,491.30 = 7,900.70/x
  3. Step 3: Cross multiply
    8,994.20x = 13,491.30 × 7,900.70
  4. Step 4: Simplify right side
    8,994.20x = 106,590,713.91
  5. Step 5: Solve for x
    x = 106,590,713.91/8,994.20
  6. Step 6: Final answer
    x = 11,851.05

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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.