Home / 10,409.86-15,619.90-4,862.39

Finding the Fourth Proportional to 10,409.86, 15,619.90 and 4,862.39

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Solution

The fourth proportional to 10,409.86, 15,619.90 and 4,862.39 is: 7,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.86 : 15,619.90 = 4,862.39 : x
  2. Step 2: Convert to fraction form
    10,409.86/15,619.90 = 4,862.39/x
  3. Step 3: Cross multiply
    10,409.86x = 15,619.90 × 4,862.39
  4. Step 4: Simplify right side
    10,409.86x = 75,950,045.56
  5. Step 5: Solve for x
    x = 75,950,045.56/10,409.86
  6. Step 6: Final answer
    x = 7,295.98

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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.