Home / 13,709.58-18,919.08-7,741.26

Finding the Fourth Proportional to 13,709.58, 18,919.08 and 7,741.26

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Solution

The fourth proportional to 13,709.58, 18,919.08 and 7,741.26 is: 10,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.58 : 18,919.08 = 7,741.26 : x
  2. Step 2: Convert to fraction form
    13,709.58/18,919.08 = 7,741.26/x
  3. Step 3: Cross multiply
    13,709.58x = 18,919.08 × 7,741.26
  4. Step 4: Simplify right side
    13,709.58x = 146,457,517.24
  5. Step 5: Solve for x
    x = 146,457,517.24/13,709.58
  6. Step 6: Final answer
    x = 10,682.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.