Home / 8,545.20-12,813.95-3,612.30

Finding the Fourth Proportional to 8,545.20, 12,813.95 and 3,612.30

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Solution

The fourth proportional to 8,545.20, 12,813.95 and 3,612.30 is: 5,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.20 : 12,813.95 = 3,612.30 : x
  2. Step 2: Convert to fraction form
    8,545.20/12,813.95 = 3,612.30/x
  3. Step 3: Cross multiply
    8,545.20x = 12,813.95 × 3,612.30
  4. Step 4: Simplify right side
    8,545.20x = 46,287,813.52
  5. Step 5: Solve for x
    x = 46,287,813.52/8,545.20
  6. Step 6: Final answer
    x = 5,416.82

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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.