Home / 13,692,986.31-18,896,911.53-7,581,414.63

Finding the Fourth Proportional to 13,692,986.31, 18,896,911.53 and 7,581,414.63

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Solution

The fourth proportional to 13,692,986.31, 18,896,911.53 and 7,581,414.63 is: 10,462,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692,986.31 : 18,896,911.53 = 7,581,414.63 : x
  2. Step 2: Convert to fraction form
    13,692,986.31/18,896,911.53 = 7,581,414.63/x
  3. Step 3: Cross multiply
    13,692,986.31x = 18,896,911.53 × 7,581,414.63
  4. Step 4: Simplify right side
    13,692,986.31x = 143,265,321,535,357.69
  5. Step 5: Solve for x
    x = 143,265,321,535,357.69/13,692,986.31
  6. Step 6: Final answer
    x = 10,462,679.09

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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.