Home / 13,931.14-20,891.45-5,608.32

Finding the Fourth Proportional to 13,931.14, 20,891.45 and 5,608.32

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Solution

The fourth proportional to 13,931.14, 20,891.45 and 5,608.32 is: 8,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.14 : 20,891.45 = 5,608.32 : x
  2. Step 2: Convert to fraction form
    13,931.14/20,891.45 = 5,608.32/x
  3. Step 3: Cross multiply
    13,931.14x = 20,891.45 × 5,608.32
  4. Step 4: Simplify right side
    13,931.14x = 117,165,936.86
  5. Step 5: Solve for x
    x = 117,165,936.86/13,931.14
  6. Step 6: Final answer
    x = 8,410.36

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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.