Home / 12,928.08-19,391.58-5,028.42

Finding the Fourth Proportional to 12,928.08, 19,391.58 and 5,028.42

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Solution

The fourth proportional to 12,928.08, 19,391.58 and 5,028.42 is: 7,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.08 : 19,391.58 = 5,028.42 : x
  2. Step 2: Convert to fraction form
    12,928.08/19,391.58 = 5,028.42/x
  3. Step 3: Cross multiply
    12,928.08x = 19,391.58 × 5,028.42
  4. Step 4: Simplify right side
    12,928.08x = 97,509,008.70
  5. Step 5: Solve for x
    x = 97,509,008.70/12,928.08
  6. Step 6: Final answer
    x = 7,542.42

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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.