Home / 13,454.29-18,564.78-7,485.94

Finding the Fourth Proportional to 13,454.29, 18,564.78 and 7,485.94

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Solution

The fourth proportional to 13,454.29, 18,564.78 and 7,485.94 is: 10,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.29 : 18,564.78 = 7,485.94 : x
  2. Step 2: Convert to fraction form
    13,454.29/18,564.78 = 7,485.94/x
  3. Step 3: Cross multiply
    13,454.29x = 18,564.78 × 7,485.94
  4. Step 4: Simplify right side
    13,454.29x = 138,974,829.19
  5. Step 5: Solve for x
    x = 138,974,829.19/13,454.29
  6. Step 6: Final answer
    x = 10,329.41

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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.