Home / 10,955.21-16,439.80-3,935.07

Finding the Fourth Proportional to 10,955.21, 16,439.80 and 3,935.07

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Solution

The fourth proportional to 10,955.21, 16,439.80 and 3,935.07 is: 5,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.21 : 16,439.80 = 3,935.07 : x
  2. Step 2: Convert to fraction form
    10,955.21/16,439.80 = 3,935.07/x
  3. Step 3: Cross multiply
    10,955.21x = 16,439.80 × 3,935.07
  4. Step 4: Simplify right side
    10,955.21x = 64,691,763.79
  5. Step 5: Solve for x
    x = 64,691,763.79/10,955.21
  6. Step 6: Final answer
    x = 5,905.11

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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.