Home / 19,201.87-28,776.89-9,974.35

Finding the Fourth Proportional to 19,201.87, 28,776.89 and 9,974.35

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Solution

The fourth proportional to 19,201.87, 28,776.89 and 9,974.35 is: 14,948.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.87 : 28,776.89 = 9,974.35 : x
  2. Step 2: Convert to fraction form
    19,201.87/28,776.89 = 9,974.35/x
  3. Step 3: Cross multiply
    19,201.87x = 28,776.89 × 9,974.35
  4. Step 4: Simplify right side
    19,201.87x = 287,030,722.90
  5. Step 5: Solve for x
    x = 287,030,722.90/19,201.87
  6. Step 6: Final answer
    x = 14,948.06

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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.