Home / 13,783.12-19,020.80-7,495.52

Finding the Fourth Proportional to 13,783.12, 19,020.80 and 7,495.52

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Solution

The fourth proportional to 13,783.12, 19,020.80 and 7,495.52 is: 10,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.12 : 19,020.80 = 7,495.52 : x
  2. Step 2: Convert to fraction form
    13,783.12/19,020.80 = 7,495.52/x
  3. Step 3: Cross multiply
    13,783.12x = 19,020.80 × 7,495.52
  4. Step 4: Simplify right side
    13,783.12x = 142,570,786.82
  5. Step 5: Solve for x
    x = 142,570,786.82/13,783.12
  6. Step 6: Final answer
    x = 10,343.87

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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.