Home / 19,786.98-27,307.47-11,289.29

Finding the Fourth Proportional to 19,786.98, 27,307.47 and 11,289.29

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Solution

The fourth proportional to 19,786.98, 27,307.47 and 11,289.29 is: 15,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.98 : 27,307.47 = 11,289.29 : x
  2. Step 2: Convert to fraction form
    19,786.98/27,307.47 = 11,289.29/x
  3. Step 3: Cross multiply
    19,786.98x = 27,307.47 × 11,289.29
  4. Step 4: Simplify right side
    19,786.98x = 308,281,820.33
  5. Step 5: Solve for x
    x = 308,281,820.33/19,786.98
  6. Step 6: Final answer
    x = 15,580.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.