Home / 13,941.05-20,917.72-5,637.28

Finding the Fourth Proportional to 13,941.05, 20,917.72 and 5,637.28

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Solution

The fourth proportional to 13,941.05, 20,917.72 and 5,637.28 is: 8,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.05 : 20,917.72 = 5,637.28 : x
  2. Step 2: Convert to fraction form
    13,941.05/20,917.72 = 5,637.28/x
  3. Step 3: Cross multiply
    13,941.05x = 20,917.72 × 5,637.28
  4. Step 4: Simplify right side
    13,941.05x = 117,918,978.21
  5. Step 5: Solve for x
    x = 117,918,978.21/13,941.05
  6. Step 6: Final answer
    x = 8,458.40

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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.