Home / 13,928.52-19,222.34-7,961.08

Finding the Fourth Proportional to 13,928.52, 19,222.34 and 7,961.08

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Solution

The fourth proportional to 13,928.52, 19,222.34 and 7,961.08 is: 10,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.52 : 19,222.34 = 7,961.08 : x
  2. Step 2: Convert to fraction form
    13,928.52/19,222.34 = 7,961.08/x
  3. Step 3: Cross multiply
    13,928.52x = 19,222.34 × 7,961.08
  4. Step 4: Simplify right side
    13,928.52x = 153,030,586.53
  5. Step 5: Solve for x
    x = 153,030,586.53/13,928.52
  6. Step 6: Final answer
    x = 10,986.85

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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.