Home / 12,955.03-19,427.78-4,632.79

Finding the Fourth Proportional to 12,955.03, 19,427.78 and 4,632.79

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Solution

The fourth proportional to 12,955.03, 19,427.78 and 4,632.79 is: 6,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.03 : 19,427.78 = 4,632.79 : x
  2. Step 2: Convert to fraction form
    12,955.03/19,427.78 = 4,632.79/x
  3. Step 3: Cross multiply
    12,955.03x = 19,427.78 × 4,632.79
  4. Step 4: Simplify right side
    12,955.03x = 90,004,704.60
  5. Step 5: Solve for x
    x = 90,004,704.60/12,955.03
  6. Step 6: Final answer
    x = 6,947.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.