Home / 13,892.10-20,813.85-11,567.05

Finding the Fourth Proportional to 13,892.10, 20,813.85 and 11,567.05

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Solution

The fourth proportional to 13,892.10, 20,813.85 and 11,567.05 is: 17,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.10 : 20,813.85 = 11,567.05 : x
  2. Step 2: Convert to fraction form
    13,892.10/20,813.85 = 11,567.05/x
  3. Step 3: Cross multiply
    13,892.10x = 20,813.85 × 11,567.05
  4. Step 4: Simplify right side
    13,892.10x = 240,754,843.64
  5. Step 5: Solve for x
    x = 240,754,843.64/13,892.10
  6. Step 6: Final answer
    x = 17,330.34

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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.