Home / 13,518.24-20,277.36-6,121.32

Finding the Fourth Proportional to 13,518.24, 20,277.36 and 6,121.32

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Solution

The fourth proportional to 13,518.24, 20,277.36 and 6,121.32 is: 9,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.24 : 20,277.36 = 6,121.32 : x
  2. Step 2: Convert to fraction form
    13,518.24/20,277.36 = 6,121.32/x
  3. Step 3: Cross multiply
    13,518.24x = 20,277.36 × 6,121.32
  4. Step 4: Simplify right side
    13,518.24x = 124,124,209.32
  5. Step 5: Solve for x
    x = 124,124,209.32/13,518.24
  6. Step 6: Final answer
    x = 9,181.98

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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.