Home / 8,364.20-12,546.30-7,440.80

Finding the Fourth Proportional to 8,364.20, 12,546.30 and 7,440.80

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Solution

The fourth proportional to 8,364.20, 12,546.30 and 7,440.80 is: 11,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.20 : 12,546.30 = 7,440.80 : x
  2. Step 2: Convert to fraction form
    8,364.20/12,546.30 = 7,440.80/x
  3. Step 3: Cross multiply
    8,364.20x = 12,546.30 × 7,440.80
  4. Step 4: Simplify right side
    8,364.20x = 93,354,509.04
  5. Step 5: Solve for x
    x = 93,354,509.04/8,364.20
  6. Step 6: Final answer
    x = 11,161.20

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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.