Home / 8,745.90-13,113.98-3,545.70

Finding the Fourth Proportional to 8,745.90, 13,113.98 and 3,545.70

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Solution

The fourth proportional to 8,745.90, 13,113.98 and 3,545.70 is: 5,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.90 : 13,113.98 = 3,545.70 : x
  2. Step 2: Convert to fraction form
    8,745.90/13,113.98 = 3,545.70/x
  3. Step 3: Cross multiply
    8,745.90x = 13,113.98 × 3,545.70
  4. Step 4: Simplify right side
    8,745.90x = 46,498,238.89
  5. Step 5: Solve for x
    x = 46,498,238.89/8,745.90
  6. Step 6: Final answer
    x = 5,316.58

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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.