Home / 19,130.54-28,700.43-6,648.75

Finding the Fourth Proportional to 19,130.54, 28,700.43 and 6,648.75

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Solution

The fourth proportional to 19,130.54, 28,700.43 and 6,648.75 is: 9,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.54 : 28,700.43 = 6,648.75 : x
  2. Step 2: Convert to fraction form
    19,130.54/28,700.43 = 6,648.75/x
  3. Step 3: Cross multiply
    19,130.54x = 28,700.43 × 6,648.75
  4. Step 4: Simplify right side
    19,130.54x = 190,821,983.96
  5. Step 5: Solve for x
    x = 190,821,983.96/19,130.54
  6. Step 6: Final answer
    x = 9,974.73

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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.