Home / 12,545.86-18,826.08-5,620.36

Finding the Fourth Proportional to 12,545.86, 18,826.08 and 5,620.36

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Solution

The fourth proportional to 12,545.86, 18,826.08 and 5,620.36 is: 8,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.86 : 18,826.08 = 5,620.36 : x
  2. Step 2: Convert to fraction form
    12,545.86/18,826.08 = 5,620.36/x
  3. Step 3: Cross multiply
    12,545.86x = 18,826.08 × 5,620.36
  4. Step 4: Simplify right side
    12,545.86x = 105,809,329.95
  5. Step 5: Solve for x
    x = 105,809,329.95/12,545.86
  6. Step 6: Final answer
    x = 8,433.80

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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.