Home / 13,769.37-19,001.05-7,800.89

Finding the Fourth Proportional to 13,769.37, 19,001.05 and 7,800.89

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Solution

The fourth proportional to 13,769.37, 19,001.05 and 7,800.89 is: 10,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.37 : 19,001.05 = 7,800.89 : x
  2. Step 2: Convert to fraction form
    13,769.37/19,001.05 = 7,800.89/x
  3. Step 3: Cross multiply
    13,769.37x = 19,001.05 × 7,800.89
  4. Step 4: Simplify right side
    13,769.37x = 148,224,986.43
  5. Step 5: Solve for x
    x = 148,224,986.43/13,769.37
  6. Step 6: Final answer
    x = 10,764.83

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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.