Home / 13,020.48-19,531.64-5,229.30

Finding the Fourth Proportional to 13,020.48, 19,531.64 and 5,229.30

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Solution

The fourth proportional to 13,020.48, 19,531.64 and 5,229.30 is: 7,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.48 : 19,531.64 = 5,229.30 : x
  2. Step 2: Convert to fraction form
    13,020.48/19,531.64 = 5,229.30/x
  3. Step 3: Cross multiply
    13,020.48x = 19,531.64 × 5,229.30
  4. Step 4: Simplify right side
    13,020.48x = 102,136,805.05
  5. Step 5: Solve for x
    x = 102,136,805.05/13,020.48
  6. Step 6: Final answer
    x = 7,844.32

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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.