Home / 14,977.87-20,669.32-8,263.55

Finding the Fourth Proportional to 14,977.87, 20,669.32 and 8,263.55

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Solution

The fourth proportional to 14,977.87, 20,669.32 and 8,263.55 is: 11,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.87 : 20,669.32 = 8,263.55 : x
  2. Step 2: Convert to fraction form
    14,977.87/20,669.32 = 8,263.55/x
  3. Step 3: Cross multiply
    14,977.87x = 20,669.32 × 8,263.55
  4. Step 4: Simplify right side
    14,977.87x = 170,801,917.97
  5. Step 5: Solve for x
    x = 170,801,917.97/14,977.87
  6. Step 6: Final answer
    x = 11,403.62

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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.