Home / 13,537.81-18,683.89-7,569.83

Finding the Fourth Proportional to 13,537.81, 18,683.89 and 7,569.83

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Solution

The fourth proportional to 13,537.81, 18,683.89 and 7,569.83 is: 10,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.81 : 18,683.89 = 7,569.83 : x
  2. Step 2: Convert to fraction form
    13,537.81/18,683.89 = 7,569.83/x
  3. Step 3: Cross multiply
    13,537.81x = 18,683.89 × 7,569.83
  4. Step 4: Simplify right side
    13,537.81x = 141,433,871.04
  5. Step 5: Solve for x
    x = 141,433,871.04/13,537.81
  6. Step 6: Final answer
    x = 10,447.32

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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.