Home / 8,445.20-12,653.96-2,895.55

Finding the Fourth Proportional to 8,445.20, 12,653.96 and 2,895.55

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Solution

The fourth proportional to 8,445.20, 12,653.96 and 2,895.55 is: 4,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.20 : 12,653.96 = 2,895.55 : x
  2. Step 2: Convert to fraction form
    8,445.20/12,653.96 = 2,895.55/x
  3. Step 3: Cross multiply
    8,445.20x = 12,653.96 × 2,895.55
  4. Step 4: Simplify right side
    8,445.20x = 36,640,127.77
  5. Step 5: Solve for x
    x = 36,640,127.77/8,445.20
  6. Step 6: Final answer
    x = 4,338.58

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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.