Home / 8,520.15-12,780.68-2,596.59

Finding the Fourth Proportional to 8,520.15, 12,780.68 and 2,596.59

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Solution

The fourth proportional to 8,520.15, 12,780.68 and 2,596.59 is: 3,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.15 : 12,780.68 = 2,596.59 : x
  2. Step 2: Convert to fraction form
    8,520.15/12,780.68 = 2,596.59/x
  3. Step 3: Cross multiply
    8,520.15x = 12,780.68 × 2,596.59
  4. Step 4: Simplify right side
    8,520.15x = 33,186,108.99
  5. Step 5: Solve for x
    x = 33,186,108.99/8,520.15
  6. Step 6: Final answer
    x = 3,895.01

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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.