Home / 19,071.98-26,313.22-11,520.55

Finding the Fourth Proportional to 19,071.98, 26,313.22 and 11,520.55

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Solution

The fourth proportional to 19,071.98, 26,313.22 and 11,520.55 is: 15,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.98 : 26,313.22 = 11,520.55 : x
  2. Step 2: Convert to fraction form
    19,071.98/26,313.22 = 11,520.55/x
  3. Step 3: Cross multiply
    19,071.98x = 26,313.22 × 11,520.55
  4. Step 4: Simplify right side
    19,071.98x = 303,142,766.67
  5. Step 5: Solve for x
    x = 303,142,766.67/19,071.98
  6. Step 6: Final answer
    x = 15,894.67

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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.