Home / 13,575.15-20,368.66-6,180.39

Finding the Fourth Proportional to 13,575.15, 20,368.66 and 6,180.39

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Solution

The fourth proportional to 13,575.15, 20,368.66 and 6,180.39 is: 9,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.15 : 20,368.66 = 6,180.39 : x
  2. Step 2: Convert to fraction form
    13,575.15/20,368.66 = 6,180.39/x
  3. Step 3: Cross multiply
    13,575.15x = 20,368.66 × 6,180.39
  4. Step 4: Simplify right side
    13,575.15x = 125,886,145.28
  5. Step 5: Solve for x
    x = 125,886,145.28/13,575.15
  6. Step 6: Final answer
    x = 9,273.28

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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.