Home / 12,545.84-18,797.99-5,515.31

Finding the Fourth Proportional to 12,545.84, 18,797.99 and 5,515.31

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Solution

The fourth proportional to 12,545.84, 18,797.99 and 5,515.31 is: 8,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.84 : 18,797.99 = 5,515.31 : x
  2. Step 2: Convert to fraction form
    12,545.84/18,797.99 = 5,515.31/x
  3. Step 3: Cross multiply
    12,545.84x = 18,797.99 × 5,515.31
  4. Step 4: Simplify right side
    12,545.84x = 103,676,686.93
  5. Step 5: Solve for x
    x = 103,676,686.93/12,545.84
  6. Step 6: Final answer
    x = 8,263.83

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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.