Home / 8,438.26-12,655.16-2,513.55

Finding the Fourth Proportional to 8,438.26, 12,655.16 and 2,513.55

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Solution

The fourth proportional to 8,438.26, 12,655.16 and 2,513.55 is: 3,769.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.26 : 12,655.16 = 2,513.55 : x
  2. Step 2: Convert to fraction form
    8,438.26/12,655.16 = 2,513.55/x
  3. Step 3: Cross multiply
    8,438.26x = 12,655.16 × 2,513.55
  4. Step 4: Simplify right side
    8,438.26x = 31,809,364.85
  5. Step 5: Solve for x
    x = 31,809,364.85/8,438.26
  6. Step 6: Final answer
    x = 3,769.66

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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.