Home / 13,708.07-20,561.19-5,389.50

Finding the Fourth Proportional to 13,708.07, 20,561.19 and 5,389.50

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Solution

The fourth proportional to 13,708.07, 20,561.19 and 5,389.50 is: 8,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.07 : 20,561.19 = 5,389.50 : x
  2. Step 2: Convert to fraction form
    13,708.07/20,561.19 = 5,389.50/x
  3. Step 3: Cross multiply
    13,708.07x = 20,561.19 × 5,389.50
  4. Step 4: Simplify right side
    13,708.07x = 110,814,533.51
  5. Step 5: Solve for x
    x = 110,814,533.51/13,708.07
  6. Step 6: Final answer
    x = 8,083.89

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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.