Home / 8,540.35-12,809.45-2,697.55

Finding the Fourth Proportional to 8,540.35, 12,809.45 and 2,697.55

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Solution

The fourth proportional to 8,540.35, 12,809.45 and 2,697.55 is: 4,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.35 : 12,809.45 = 2,697.55 : x
  2. Step 2: Convert to fraction form
    8,540.35/12,809.45 = 2,697.55/x
  3. Step 3: Cross multiply
    8,540.35x = 12,809.45 × 2,697.55
  4. Step 4: Simplify right side
    8,540.35x = 34,554,118.36
  5. Step 5: Solve for x
    x = 34,554,118.36/8,540.35
  6. Step 6: Final answer
    x = 4,045.98

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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.