Home / 10,128.15-15,194.67-3,803.08

Finding the Fourth Proportional to 10,128.15, 15,194.67 and 3,803.08

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Solution

The fourth proportional to 10,128.15, 15,194.67 and 3,803.08 is: 5,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.15 : 15,194.67 = 3,803.08 : x
  2. Step 2: Convert to fraction form
    10,128.15/15,194.67 = 3,803.08/x
  3. Step 3: Cross multiply
    10,128.15x = 15,194.67 × 3,803.08
  4. Step 4: Simplify right side
    10,128.15x = 57,786,545.58
  5. Step 5: Solve for x
    x = 57,786,545.58/10,128.15
  6. Step 6: Final answer
    x = 5,705.54

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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.