Home / 8,400.42-12,600.69-2,557.02

Finding the Fourth Proportional to 8,400.42, 12,600.69 and 2,557.02

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Solution

The fourth proportional to 8,400.42, 12,600.69 and 2,557.02 is: 3,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.42 : 12,600.69 = 2,557.02 : x
  2. Step 2: Convert to fraction form
    8,400.42/12,600.69 = 2,557.02/x
  3. Step 3: Cross multiply
    8,400.42x = 12,600.69 × 2,557.02
  4. Step 4: Simplify right side
    8,400.42x = 32,220,216.34
  5. Step 5: Solve for x
    x = 32,220,216.34/8,400.42
  6. Step 6: Final answer
    x = 3,835.55

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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.