Home / 13,749.90-18,962.32-11,629.88

Finding the Fourth Proportional to 13,749.90, 18,962.32 and 11,629.88

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Solution

The fourth proportional to 13,749.90, 18,962.32 and 11,629.88 is: 16,038.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.90 : 18,962.32 = 11,629.88 : x
  2. Step 2: Convert to fraction form
    13,749.90/18,962.32 = 11,629.88/x
  3. Step 3: Cross multiply
    13,749.90x = 18,962.32 × 11,629.88
  4. Step 4: Simplify right side
    13,749.90x = 220,529,506.12
  5. Step 5: Solve for x
    x = 220,529,506.12/13,749.90
  6. Step 6: Final answer
    x = 16,038.63

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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.