Home / 13,705.07-18,912.99-7,417.44

Finding the Fourth Proportional to 13,705.07, 18,912.99 and 7,417.44

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Solution

The fourth proportional to 13,705.07, 18,912.99 and 7,417.44 is: 10,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.07 : 18,912.99 = 7,417.44 : x
  2. Step 2: Convert to fraction form
    13,705.07/18,912.99 = 7,417.44/x
  3. Step 3: Cross multiply
    13,705.07x = 18,912.99 × 7,417.44
  4. Step 4: Simplify right side
    13,705.07x = 140,285,996.36
  5. Step 5: Solve for x
    x = 140,285,996.36/13,705.07
  6. Step 6: Final answer
    x = 10,236.07

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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.