Home / 13,905.55-20,833.67-11,551.75

Finding the Fourth Proportional to 13,905.55, 20,833.67 and 11,551.75

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Solution

The fourth proportional to 13,905.55, 20,833.67 and 11,551.75 is: 17,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.55 : 20,833.67 = 11,551.75 : x
  2. Step 2: Convert to fraction form
    13,905.55/20,833.67 = 11,551.75/x
  3. Step 3: Cross multiply
    13,905.55x = 20,833.67 × 11,551.75
  4. Step 4: Simplify right side
    13,905.55x = 240,665,289.66
  5. Step 5: Solve for x
    x = 240,665,289.66/13,905.55
  6. Step 6: Final answer
    x = 17,307.14

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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.