Home / 11,703.28-17,555.40-3,912.16

Finding the Fourth Proportional to 11,703.28, 17,555.40 and 3,912.16

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Solution

The fourth proportional to 11,703.28, 17,555.40 and 3,912.16 is: 5,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.28 : 17,555.40 = 3,912.16 : x
  2. Step 2: Convert to fraction form
    11,703.28/17,555.40 = 3,912.16/x
  3. Step 3: Cross multiply
    11,703.28x = 17,555.40 × 3,912.16
  4. Step 4: Simplify right side
    11,703.28x = 68,679,533.66
  5. Step 5: Solve for x
    x = 68,679,533.66/11,703.28
  6. Step 6: Final answer
    x = 5,868.40

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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.