Home / 12,545.67-18,825.80-5,620.17

Finding the Fourth Proportional to 12,545.67, 18,825.80 and 5,620.17

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Solution

The fourth proportional to 12,545.67, 18,825.80 and 5,620.17 is: 8,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.67 : 18,825.80 = 5,620.17 : x
  2. Step 2: Convert to fraction form
    12,545.67/18,825.80 = 5,620.17/x
  3. Step 3: Cross multiply
    12,545.67x = 18,825.80 × 5,620.17
  4. Step 4: Simplify right side
    12,545.67x = 105,804,259.96
  5. Step 5: Solve for x
    x = 105,804,259.96/12,545.67
  6. Step 6: Final answer
    x = 8,433.53

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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.