Home / 19,668.50-29,486.73-9,145.14

Finding the Fourth Proportional to 19,668.50, 29,486.73 and 9,145.14

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Solution

The fourth proportional to 19,668.50, 29,486.73 and 9,145.14 is: 13,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.50 : 29,486.73 = 9,145.14 : x
  2. Step 2: Convert to fraction form
    19,668.50/29,486.73 = 9,145.14/x
  3. Step 3: Cross multiply
    19,668.50x = 29,486.73 × 9,145.14
  4. Step 4: Simplify right side
    19,668.50x = 269,660,273.99
  5. Step 5: Solve for x
    x = 269,660,273.99/19,668.50
  6. Step 6: Final answer
    x = 13,710.26

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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.