Home / 8,090.96-12,138.84-2,545.07

Finding the Fourth Proportional to 8,090.96, 12,138.84 and 2,545.07

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Solution

The fourth proportional to 8,090.96, 12,138.84 and 2,545.07 is: 3,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.96 : 12,138.84 = 2,545.07 : x
  2. Step 2: Convert to fraction form
    8,090.96/12,138.84 = 2,545.07/x
  3. Step 3: Cross multiply
    8,090.96x = 12,138.84 × 2,545.07
  4. Step 4: Simplify right side
    8,090.96x = 30,894,136.82
  5. Step 5: Solve for x
    x = 30,894,136.82/8,090.96
  6. Step 6: Final answer
    x = 3,818.35

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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.