Home / 8,431.26-12,646.88-4,685.42

Finding the Fourth Proportional to 8,431.26, 12,646.88 and 4,685.42

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Solution

The fourth proportional to 8,431.26, 12,646.88 and 4,685.42 is: 7,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.26 : 12,646.88 = 4,685.42 : x
  2. Step 2: Convert to fraction form
    8,431.26/12,646.88 = 4,685.42/x
  3. Step 3: Cross multiply
    8,431.26x = 12,646.88 × 4,685.42
  4. Step 4: Simplify right side
    8,431.26x = 59,255,944.49
  5. Step 5: Solve for x
    x = 59,255,944.49/8,431.26
  6. Step 6: Final answer
    x = 7,028.12

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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.