Home / 10,939.46-15,096.44-6,464.81

Finding the Fourth Proportional to 10,939.46, 15,096.44 and 6,464.81

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Solution

The fourth proportional to 10,939.46, 15,096.44 and 6,464.81 is: 8,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.46 : 15,096.44 = 6,464.81 : x
  2. Step 2: Convert to fraction form
    10,939.46/15,096.44 = 6,464.81/x
  3. Step 3: Cross multiply
    10,939.46x = 15,096.44 × 6,464.81
  4. Step 4: Simplify right side
    10,939.46x = 97,595,670.18
  5. Step 5: Solve for x
    x = 97,595,670.18/10,939.46
  6. Step 6: Final answer
    x = 8,921.44

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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.