Home / 13,769.04-18,996.75-7,718.34

Finding the Fourth Proportional to 13,769.04, 18,996.75 and 7,718.34

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Solution

The fourth proportional to 13,769.04, 18,996.75 and 7,718.34 is: 10,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.04 : 18,996.75 = 7,718.34 : x
  2. Step 2: Convert to fraction form
    13,769.04/18,996.75 = 7,718.34/x
  3. Step 3: Cross multiply
    13,769.04x = 18,996.75 × 7,718.34
  4. Step 4: Simplify right side
    13,769.04x = 146,623,361.48
  5. Step 5: Solve for x
    x = 146,623,361.48/13,769.04
  6. Step 6: Final answer
    x = 10,648.77

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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.