Home / 13,890.24-19,162.44-8,298

Finding the Fourth Proportional to 13,890.24, 19,162.44 and 8,298

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Solution

The fourth proportional to 13,890.24, 19,162.44 and 8,298 is: 11,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.24 : 19,162.44 = 8,298 : x
  2. Step 2: Convert to fraction form
    13,890.24/19,162.44 = 8,298/x
  3. Step 3: Cross multiply
    13,890.24x = 19,162.44 × 8,298
  4. Step 4: Simplify right side
    13,890.24x = 159,009,927.12
  5. Step 5: Solve for x
    x = 159,009,927.12/13,890.24
  6. Step 6: Final answer
    x = 11,447.60

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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.