Home / 7,486.45-10,331.29-4,129.48

Finding the Fourth Proportional to 7,486.45, 10,331.29 and 4,129.48

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Solution

The fourth proportional to 7,486.45, 10,331.29 and 4,129.48 is: 5,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.45 : 10,331.29 = 4,129.48 : x
  2. Step 2: Convert to fraction form
    7,486.45/10,331.29 = 4,129.48/x
  3. Step 3: Cross multiply
    7,486.45x = 10,331.29 × 4,129.48
  4. Step 4: Simplify right side
    7,486.45x = 42,662,855.43
  5. Step 5: Solve for x
    x = 42,662,855.43/7,486.45
  6. Step 6: Final answer
    x = 5,698.68

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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.