Home / 8,440.30-12,661.46-2,894.63

Finding the Fourth Proportional to 8,440.30, 12,661.46 and 2,894.63

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Solution

The fourth proportional to 8,440.30, 12,661.46 and 2,894.63 is: 4,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.30 : 12,661.46 = 2,894.63 : x
  2. Step 2: Convert to fraction form
    8,440.30/12,661.46 = 2,894.63/x
  3. Step 3: Cross multiply
    8,440.30x = 12,661.46 × 2,894.63
  4. Step 4: Simplify right side
    8,440.30x = 36,650,280.85
  5. Step 5: Solve for x
    x = 36,650,280.85/8,440.30
  6. Step 6: Final answer
    x = 4,342.30

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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.