Home / 13,021.48-19,533.12-5,230.29

Finding the Fourth Proportional to 13,021.48, 19,533.12 and 5,230.29

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Solution

The fourth proportional to 13,021.48, 19,533.12 and 5,230.29 is: 7,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.48 : 19,533.12 = 5,230.29 : x
  2. Step 2: Convert to fraction form
    13,021.48/19,533.12 = 5,230.29/x
  3. Step 3: Cross multiply
    13,021.48x = 19,533.12 × 5,230.29
  4. Step 4: Simplify right side
    13,021.48x = 102,163,882.20
  5. Step 5: Solve for x
    x = 102,163,882.20/13,021.48
  6. Step 6: Final answer
    x = 7,845.80

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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.