Home / 13,928.34-19,208.26-12,922.32

Finding the Fourth Proportional to 13,928.34, 19,208.26 and 12,922.32

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Solution

The fourth proportional to 13,928.34, 19,208.26 and 12,922.32 is: 17,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.34 : 19,208.26 = 12,922.32 : x
  2. Step 2: Convert to fraction form
    13,928.34/19,208.26 = 12,922.32/x
  3. Step 3: Cross multiply
    13,928.34x = 19,208.26 × 12,922.32
  4. Step 4: Simplify right side
    13,928.34x = 248,215,282.36
  5. Step 5: Solve for x
    x = 248,215,282.36/13,928.34
  6. Step 6: Final answer
    x = 17,820.88

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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.