Home / 11,285.21-16,928.93-3,888.69

Finding the Fourth Proportional to 11,285.21, 16,928.93 and 3,888.69

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Solution

The fourth proportional to 11,285.21, 16,928.93 and 3,888.69 is: 5,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.21 : 16,928.93 = 3,888.69 : x
  2. Step 2: Convert to fraction form
    11,285.21/16,928.93 = 3,888.69/x
  3. Step 3: Cross multiply
    11,285.21x = 16,928.93 × 3,888.69
  4. Step 4: Simplify right side
    11,285.21x = 65,831,341.36
  5. Step 5: Solve for x
    x = 65,831,341.36/11,285.21
  6. Step 6: Final answer
    x = 5,833.42

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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.