Home / 8,545.32-12,813.86-2,997.90

Finding the Fourth Proportional to 8,545.32, 12,813.86 and 2,997.90

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Solution

The fourth proportional to 8,545.32, 12,813.86 and 2,997.90 is: 4,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.32 : 12,813.86 = 2,997.90 : x
  2. Step 2: Convert to fraction form
    8,545.32/12,813.86 = 2,997.90/x
  3. Step 3: Cross multiply
    8,545.32x = 12,813.86 × 2,997.90
  4. Step 4: Simplify right side
    8,545.32x = 38,414,670.89
  5. Step 5: Solve for x
    x = 38,414,670.89/8,545.32
  6. Step 6: Final answer
    x = 4,495.40

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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.