Home / 8,445.35-12,661.20-3,518.70

Finding the Fourth Proportional to 8,445.35, 12,661.20 and 3,518.70

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Solution

The fourth proportional to 8,445.35, 12,661.20 and 3,518.70 is: 5,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.35 : 12,661.20 = 3,518.70 : x
  2. Step 2: Convert to fraction form
    8,445.35/12,661.20 = 3,518.70/x
  3. Step 3: Cross multiply
    8,445.35x = 12,661.20 × 3,518.70
  4. Step 4: Simplify right side
    8,445.35x = 44,550,964.44
  5. Step 5: Solve for x
    x = 44,550,964.44/8,445.35
  6. Step 6: Final answer
    x = 5,275.21

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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.