Home / 13,379.06-20,068.59-3,518.32

Finding the Fourth Proportional to 13,379.06, 20,068.59 and 3,518.32

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Solution

The fourth proportional to 13,379.06, 20,068.59 and 3,518.32 is: 5,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.06 : 20,068.59 = 3,518.32 : x
  2. Step 2: Convert to fraction form
    13,379.06/20,068.59 = 3,518.32/x
  3. Step 3: Cross multiply
    13,379.06x = 20,068.59 × 3,518.32
  4. Step 4: Simplify right side
    13,379.06x = 70,607,722.22
  5. Step 5: Solve for x
    x = 70,607,722.22/13,379.06
  6. Step 6: Final answer
    x = 5,277.48

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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.