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Finding the Fourth Proportional to 8,400.57, 12,602.48 and 2,556.69

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Solution

The fourth proportional to 8,400.57, 12,602.48 and 2,556.69 is: 3,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.57 : 12,602.48 = 2,556.69 : x
  2. Step 2: Convert to fraction form
    8,400.57/12,602.48 = 2,556.69/x
  3. Step 3: Cross multiply
    8,400.57x = 12,602.48 × 2,556.69
  4. Step 4: Simplify right side
    8,400.57x = 32,220,621.81
  5. Step 5: Solve for x
    x = 32,220,621.81/8,400.57
  6. Step 6: Final answer
    x = 3,835.53

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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.