Home / 13,021.61-19,532.53-3,160.97

Finding the Fourth Proportional to 13,021.61, 19,532.53 and 3,160.97

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Solution

The fourth proportional to 13,021.61, 19,532.53 and 3,160.97 is: 4,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.61 : 19,532.53 = 3,160.97 : x
  2. Step 2: Convert to fraction form
    13,021.61/19,532.53 = 3,160.97/x
  3. Step 3: Cross multiply
    13,021.61x = 19,532.53 × 3,160.97
  4. Step 4: Simplify right side
    13,021.61x = 61,741,741.35
  5. Step 5: Solve for x
    x = 61,741,741.35/13,021.61
  6. Step 6: Final answer
    x = 4,741.48

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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.