Home / 13,439.32-20,160.80-4,673.09

Finding the Fourth Proportional to 13,439.32, 20,160.80 and 4,673.09

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Solution

The fourth proportional to 13,439.32, 20,160.80 and 4,673.09 is: 7,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.32 : 20,160.80 = 4,673.09 : x
  2. Step 2: Convert to fraction form
    13,439.32/20,160.80 = 4,673.09/x
  3. Step 3: Cross multiply
    13,439.32x = 20,160.80 × 4,673.09
  4. Step 4: Simplify right side
    13,439.32x = 94,213,277.43
  5. Step 5: Solve for x
    x = 94,213,277.43/13,439.32
  6. Step 6: Final answer
    x = 7,010.27

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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.