Home / 10,615.86-15,923.85-3,220.33

Finding the Fourth Proportional to 10,615.86, 15,923.85 and 3,220.33

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Solution

The fourth proportional to 10,615.86, 15,923.85 and 3,220.33 is: 4,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.86 : 15,923.85 = 3,220.33 : x
  2. Step 2: Convert to fraction form
    10,615.86/15,923.85 = 3,220.33/x
  3. Step 3: Cross multiply
    10,615.86x = 15,923.85 × 3,220.33
  4. Step 4: Simplify right side
    10,615.86x = 51,280,051.87
  5. Step 5: Solve for x
    x = 51,280,051.87/10,615.86
  6. Step 6: Final answer
    x = 4,830.51

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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.