Home / 13,962.09-20,940.03-4,098.72

Finding the Fourth Proportional to 13,962.09, 20,940.03 and 4,098.72

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Solution

The fourth proportional to 13,962.09, 20,940.03 and 4,098.72 is: 6,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.09 : 20,940.03 = 4,098.72 : x
  2. Step 2: Convert to fraction form
    13,962.09/20,940.03 = 4,098.72/x
  3. Step 3: Cross multiply
    13,962.09x = 20,940.03 × 4,098.72
  4. Step 4: Simplify right side
    13,962.09x = 85,827,319.76
  5. Step 5: Solve for x
    x = 85,827,319.76/13,962.09
  6. Step 6: Final answer
    x = 6,147.17

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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.