Home / 13,083.18-19,486.23-13,019.45

Finding the Fourth Proportional to 13,083.18, 19,486.23 and 13,019.45

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Solution

The fourth proportional to 13,083.18, 19,486.23 and 13,019.45 is: 19,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.18 : 19,486.23 = 13,019.45 : x
  2. Step 2: Convert to fraction form
    13,083.18/19,486.23 = 13,019.45/x
  3. Step 3: Cross multiply
    13,083.18x = 19,486.23 × 13,019.45
  4. Step 4: Simplify right side
    13,083.18x = 253,699,834.65
  5. Step 5: Solve for x
    x = 253,699,834.65/13,083.18
  6. Step 6: Final answer
    x = 19,391.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.