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Finding the Fourth Proportional to 8,400.54, 12,597.15 and 2,555.79

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Solution

The fourth proportional to 8,400.54, 12,597.15 and 2,555.79 is: 3,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.54 : 12,597.15 = 2,555.79 : x
  2. Step 2: Convert to fraction form
    8,400.54/12,597.15 = 2,555.79/x
  3. Step 3: Cross multiply
    8,400.54x = 12,597.15 × 2,555.79
  4. Step 4: Simplify right side
    8,400.54x = 32,195,632.34
  5. Step 5: Solve for x
    x = 32,195,632.34/8,400.54
  6. Step 6: Final answer
    x = 3,832.57

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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.