Home / 9,121.07-13,683.01-3,856.09

Finding the Fourth Proportional to 9,121.07, 13,683.01 and 3,856.09

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Solution

The fourth proportional to 9,121.07, 13,683.01 and 3,856.09 is: 5,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.07 : 13,683.01 = 3,856.09 : x
  2. Step 2: Convert to fraction form
    9,121.07/13,683.01 = 3,856.09/x
  3. Step 3: Cross multiply
    9,121.07x = 13,683.01 × 3,856.09
  4. Step 4: Simplify right side
    9,121.07x = 52,762,981.06
  5. Step 5: Solve for x
    x = 52,762,981.06/9,121.07
  6. Step 6: Final answer
    x = 5,784.74

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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.