Home / 19,515.76-26,928.85-11,446.36

Finding the Fourth Proportional to 19,515.76, 26,928.85 and 11,446.36

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Solution

The fourth proportional to 19,515.76, 26,928.85 and 11,446.36 is: 15,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.76 : 26,928.85 = 11,446.36 : x
  2. Step 2: Convert to fraction form
    19,515.76/26,928.85 = 11,446.36/x
  3. Step 3: Cross multiply
    19,515.76x = 26,928.85 × 11,446.36
  4. Step 4: Simplify right side
    19,515.76x = 308,237,311.49
  5. Step 5: Solve for x
    x = 308,237,311.49/19,515.76
  6. Step 6: Final answer
    x = 15,794.28

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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.