Home / 7,486.66-10,331.63-4,129.56

Finding the Fourth Proportional to 7,486.66, 10,331.63 and 4,129.56

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Solution

The fourth proportional to 7,486.66, 10,331.63 and 4,129.56 is: 5,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.66 : 10,331.63 = 4,129.56 : x
  2. Step 2: Convert to fraction form
    7,486.66/10,331.63 = 4,129.56/x
  3. Step 3: Cross multiply
    7,486.66x = 10,331.63 × 4,129.56
  4. Step 4: Simplify right side
    7,486.66x = 42,665,096.31
  5. Step 5: Solve for x
    x = 42,665,096.31/7,486.66
  6. Step 6: Final answer
    x = 5,698.82

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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.