Home / 7,486.36-10,331.25-4,129.31

Finding the Fourth Proportional to 7,486.36, 10,331.25 and 4,129.31

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Solution

The fourth proportional to 7,486.36, 10,331.25 and 4,129.31 is: 5,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.36 : 10,331.25 = 4,129.31 : x
  2. Step 2: Convert to fraction form
    7,486.36/10,331.25 = 4,129.31/x
  3. Step 3: Cross multiply
    7,486.36x = 10,331.25 × 4,129.31
  4. Step 4: Simplify right side
    7,486.36x = 42,660,933.94
  5. Step 5: Solve for x
    x = 42,660,933.94/7,486.36
  6. Step 6: Final answer
    x = 5,698.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.