Home / 13,865.52-19,129.92-7,896.24

Finding the Fourth Proportional to 13,865.52, 19,129.92 and 7,896.24

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Solution

The fourth proportional to 13,865.52, 19,129.92 and 7,896.24 is: 10,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.52 : 19,129.92 = 7,896.24 : x
  2. Step 2: Convert to fraction form
    13,865.52/19,129.92 = 7,896.24/x
  3. Step 3: Cross multiply
    13,865.52x = 19,129.92 × 7,896.24
  4. Step 4: Simplify right side
    13,865.52x = 151,054,439.50
  5. Step 5: Solve for x
    x = 151,054,439.50/13,865.52
  6. Step 6: Final answer
    x = 10,894.25

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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.