Home / 10,379.30-15,568.95-3,453.80

Finding the Fourth Proportional to 10,379.30, 15,568.95 and 3,453.80

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Solution

The fourth proportional to 10,379.30, 15,568.95 and 3,453.80 is: 5,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.30 : 15,568.95 = 3,453.80 : x
  2. Step 2: Convert to fraction form
    10,379.30/15,568.95 = 3,453.80/x
  3. Step 3: Cross multiply
    10,379.30x = 15,568.95 × 3,453.80
  4. Step 4: Simplify right side
    10,379.30x = 53,772,039.51
  5. Step 5: Solve for x
    x = 53,772,039.51/10,379.30
  6. Step 6: Final answer
    x = 5,180.70

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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.