Home / 13,973.58-19,283.70-7,686

Finding the Fourth Proportional to 13,973.58, 19,283.70 and 7,686

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Solution

The fourth proportional to 13,973.58, 19,283.70 and 7,686 is: 10,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.58 : 19,283.70 = 7,686 : x
  2. Step 2: Convert to fraction form
    13,973.58/19,283.70 = 7,686/x
  3. Step 3: Cross multiply
    13,973.58x = 19,283.70 × 7,686
  4. Step 4: Simplify right side
    13,973.58x = 148,214,518.20
  5. Step 5: Solve for x
    x = 148,214,518.20/13,973.58
  6. Step 6: Final answer
    x = 10,606.77

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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.