Home / 13,017.54-17,950.78-11,135.35

Finding the Fourth Proportional to 13,017.54, 17,950.78 and 11,135.35

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Solution

The fourth proportional to 13,017.54, 17,950.78 and 11,135.35 is: 15,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,017.54 : 17,950.78 = 11,135.35 : x
  2. Step 2: Convert to fraction form
    13,017.54/17,950.78 = 11,135.35/x
  3. Step 3: Cross multiply
    13,017.54x = 17,950.78 × 11,135.35
  4. Step 4: Simplify right side
    13,017.54x = 199,888,218.07
  5. Step 5: Solve for x
    x = 199,888,218.07/13,017.54
  6. Step 6: Final answer
    x = 15,355.30

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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.