Home / 10,129.55-15,192.38-4,290.26

Finding the Fourth Proportional to 10,129.55, 15,192.38 and 4,290.26

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Solution

The fourth proportional to 10,129.55, 15,192.38 and 4,290.26 is: 6,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.55 : 15,192.38 = 4,290.26 : x
  2. Step 2: Convert to fraction form
    10,129.55/15,192.38 = 4,290.26/x
  3. Step 3: Cross multiply
    10,129.55x = 15,192.38 × 4,290.26
  4. Step 4: Simplify right side
    10,129.55x = 65,179,162.81
  5. Step 5: Solve for x
    x = 65,179,162.81/10,129.55
  6. Step 6: Final answer
    x = 6,434.56

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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.