Home / 8,723.60-13,085.40-2,149.80

Finding the Fourth Proportional to 8,723.60, 13,085.40 and 2,149.80

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Solution

The fourth proportional to 8,723.60, 13,085.40 and 2,149.80 is: 3,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.60 : 13,085.40 = 2,149.80 : x
  2. Step 2: Convert to fraction form
    8,723.60/13,085.40 = 2,149.80/x
  3. Step 3: Cross multiply
    8,723.60x = 13,085.40 × 2,149.80
  4. Step 4: Simplify right side
    8,723.60x = 28,130,992.92
  5. Step 5: Solve for x
    x = 28,130,992.92/8,723.60
  6. Step 6: Final answer
    x = 3,224.70

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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.