Home / 15,986.93-22,069.39-11,390.67

Finding the Fourth Proportional to 15,986.93, 22,069.39 and 11,390.67

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Solution

The fourth proportional to 15,986.93, 22,069.39 and 11,390.67 is: 15,724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.93 : 22,069.39 = 11,390.67 : x
  2. Step 2: Convert to fraction form
    15,986.93/22,069.39 = 11,390.67/x
  3. Step 3: Cross multiply
    15,986.93x = 22,069.39 × 11,390.67
  4. Step 4: Simplify right side
    15,986.93x = 251,384,971.29
  5. Step 5: Solve for x
    x = 251,384,971.29/15,986.93
  6. Step 6: Final answer
    x = 15,724.41

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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.