Home / 10,619.15-15,930.73-3,503.80

Finding the Fourth Proportional to 10,619.15, 15,930.73 and 3,503.80

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Solution

The fourth proportional to 10,619.15, 15,930.73 and 3,503.80 is: 5,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.15 : 15,930.73 = 3,503.80 : x
  2. Step 2: Convert to fraction form
    10,619.15/15,930.73 = 3,503.80/x
  3. Step 3: Cross multiply
    10,619.15x = 15,930.73 × 3,503.80
  4. Step 4: Simplify right side
    10,619.15x = 55,818,091.77
  5. Step 5: Solve for x
    x = 55,818,091.77/10,619.15
  6. Step 6: Final answer
    x = 5,256.36

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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.