Home / 13,984.83-20,975.45-4,125.15

Finding the Fourth Proportional to 13,984.83, 20,975.45 and 4,125.15

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Solution

The fourth proportional to 13,984.83, 20,975.45 and 4,125.15 is: 6,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.83 : 20,975.45 = 4,125.15 : x
  2. Step 2: Convert to fraction form
    13,984.83/20,975.45 = 4,125.15/x
  3. Step 3: Cross multiply
    13,984.83x = 20,975.45 × 4,125.15
  4. Step 4: Simplify right side
    13,984.83x = 86,526,856.94
  5. Step 5: Solve for x
    x = 86,526,856.94/13,984.83
  6. Step 6: Final answer
    x = 6,187.19

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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.