Home / 13,019.57-19,530.26-5,228.38

Finding the Fourth Proportional to 13,019.57, 19,530.26 and 5,228.38

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Solution

The fourth proportional to 13,019.57, 19,530.26 and 5,228.38 is: 7,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.57 : 19,530.26 = 5,228.38 : x
  2. Step 2: Convert to fraction form
    13,019.57/19,530.26 = 5,228.38/x
  3. Step 3: Cross multiply
    13,019.57x = 19,530.26 × 5,228.38
  4. Step 4: Simplify right side
    13,019.57x = 102,111,496.99
  5. Step 5: Solve for x
    x = 102,111,496.99/13,019.57
  6. Step 6: Final answer
    x = 7,842.93

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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.