Home / 19,679.08-27,157.86-11,182.64

Finding the Fourth Proportional to 19,679.08, 27,157.86 and 11,182.64

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Solution

The fourth proportional to 19,679.08, 27,157.86 and 11,182.64 is: 15,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.08 : 27,157.86 = 11,182.64 : x
  2. Step 2: Convert to fraction form
    19,679.08/27,157.86 = 11,182.64/x
  3. Step 3: Cross multiply
    19,679.08x = 27,157.86 × 11,182.64
  4. Step 4: Simplify right side
    19,679.08x = 303,696,571.55
  5. Step 5: Solve for x
    x = 303,696,571.55/19,679.08
  6. Step 6: Final answer
    x = 15,432.46

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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.