Home / 13,669.23-18,864.17-7,619.87

Finding the Fourth Proportional to 13,669.23, 18,864.17 and 7,619.87

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Solution

The fourth proportional to 13,669.23, 18,864.17 and 7,619.87 is: 10,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.23 : 18,864.17 = 7,619.87 : x
  2. Step 2: Convert to fraction form
    13,669.23/18,864.17 = 7,619.87/x
  3. Step 3: Cross multiply
    13,669.23x = 18,864.17 × 7,619.87
  4. Step 4: Simplify right side
    13,669.23x = 143,742,560.69
  5. Step 5: Solve for x
    x = 143,742,560.69/13,669.23
  6. Step 6: Final answer
    x = 10,515.77

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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.