Home / 13,530.51-20,290.77-5,739.93

Finding the Fourth Proportional to 13,530.51, 20,290.77 and 5,739.93

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Solution

The fourth proportional to 13,530.51, 20,290.77 and 5,739.93 is: 8,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.51 : 20,290.77 = 5,739.93 : x
  2. Step 2: Convert to fraction form
    13,530.51/20,290.77 = 5,739.93/x
  3. Step 3: Cross multiply
    13,530.51x = 20,290.77 × 5,739.93
  4. Step 4: Simplify right side
    13,530.51x = 116,467,599.45
  5. Step 5: Solve for x
    x = 116,467,599.45/13,530.51
  6. Step 6: Final answer
    x = 8,607.78

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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.