Home / 10,128.68-15,192.92-3,203.18

Finding the Fourth Proportional to 10,128.68, 15,192.92 and 3,203.18

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Solution

The fourth proportional to 10,128.68, 15,192.92 and 3,203.18 is: 4,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.68 : 15,192.92 = 3,203.18 : x
  2. Step 2: Convert to fraction form
    10,128.68/15,192.92 = 3,203.18/x
  3. Step 3: Cross multiply
    10,128.68x = 15,192.92 × 3,203.18
  4. Step 4: Simplify right side
    10,128.68x = 48,665,657.49
  5. Step 5: Solve for x
    x = 48,665,657.49/10,128.68
  6. Step 6: Final answer
    x = 4,804.74

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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.