Home / 13,935.06-19,239.39-8,635.50

Finding the Fourth Proportional to 13,935.06, 19,239.39 and 8,635.50

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Solution

The fourth proportional to 13,935.06, 19,239.39 and 8,635.50 is: 11,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.06 : 19,239.39 = 8,635.50 : x
  2. Step 2: Convert to fraction form
    13,935.06/19,239.39 = 8,635.50/x
  3. Step 3: Cross multiply
    13,935.06x = 19,239.39 × 8,635.50
  4. Step 4: Simplify right side
    13,935.06x = 166,141,752.35
  5. Step 5: Solve for x
    x = 166,141,752.35/13,935.06
  6. Step 6: Final answer
    x = 11,922.57

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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.