Home / 13,020.07-19,531.01-5,228.88

Finding the Fourth Proportional to 13,020.07, 19,531.01 and 5,228.88

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Solution

The fourth proportional to 13,020.07, 19,531.01 and 5,228.88 is: 7,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.07 : 19,531.01 = 5,228.88 : x
  2. Step 2: Convert to fraction form
    13,020.07/19,531.01 = 5,228.88/x
  3. Step 3: Cross multiply
    13,020.07x = 19,531.01 × 5,228.88
  4. Step 4: Simplify right side
    13,020.07x = 102,125,183.77
  5. Step 5: Solve for x
    x = 102,125,183.77/13,020.07
  6. Step 6: Final answer
    x = 7,843.68

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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.