Home / 13,629.72-18,842.55-13,504.98

Finding the Fourth Proportional to 13,629.72, 18,842.55 and 13,504.98

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Solution

The fourth proportional to 13,629.72, 18,842.55 and 13,504.98 is: 18,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.72 : 18,842.55 = 13,504.98 : x
  2. Step 2: Convert to fraction form
    13,629.72/18,842.55 = 13,504.98/x
  3. Step 3: Cross multiply
    13,629.72x = 18,842.55 × 13,504.98
  4. Step 4: Simplify right side
    13,629.72x = 254,468,166.69
  5. Step 5: Solve for x
    x = 254,468,166.69/13,629.72
  6. Step 6: Final answer
    x = 18,670.10

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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.