Home / 10,129.03-15,189.90-4,286.05

Finding the Fourth Proportional to 10,129.03, 15,189.90 and 4,286.05

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Solution

The fourth proportional to 10,129.03, 15,189.90 and 4,286.05 is: 6,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.03 : 15,189.90 = 4,286.05 : x
  2. Step 2: Convert to fraction form
    10,129.03/15,189.90 = 4,286.05/x
  3. Step 3: Cross multiply
    10,129.03x = 15,189.90 × 4,286.05
  4. Step 4: Simplify right side
    10,129.03x = 65,104,670.90
  5. Step 5: Solve for x
    x = 65,104,670.90/10,129.03
  6. Step 6: Final answer
    x = 6,427.53

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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.