Home / 13,944.55-19,242.95-8,639.25

Finding the Fourth Proportional to 13,944.55, 19,242.95 and 8,639.25

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Solution

The fourth proportional to 13,944.55, 19,242.95 and 8,639.25 is: 11,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.55 : 19,242.95 = 8,639.25 : x
  2. Step 2: Convert to fraction form
    13,944.55/19,242.95 = 8,639.25/x
  3. Step 3: Cross multiply
    13,944.55x = 19,242.95 × 8,639.25
  4. Step 4: Simplify right side
    13,944.55x = 166,244,655.79
  5. Step 5: Solve for x
    x = 166,244,655.79/13,944.55
  6. Step 6: Final answer
    x = 11,921.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.