Home / 13,583.69-20,386.57-7,011.75

Finding the Fourth Proportional to 13,583.69, 20,386.57 and 7,011.75

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Solution

The fourth proportional to 13,583.69, 20,386.57 and 7,011.75 is: 10,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.69 : 20,386.57 = 7,011.75 : x
  2. Step 2: Convert to fraction form
    13,583.69/20,386.57 = 7,011.75/x
  3. Step 3: Cross multiply
    13,583.69x = 20,386.57 × 7,011.75
  4. Step 4: Simplify right side
    13,583.69x = 142,945,532.20
  5. Step 5: Solve for x
    x = 142,945,532.20/13,583.69
  6. Step 6: Final answer
    x = 10,523.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.