Home / 13,784.59-20,679.32-5,465.89

Finding the Fourth Proportional to 13,784.59, 20,679.32 and 5,465.89

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Solution

The fourth proportional to 13,784.59, 20,679.32 and 5,465.89 is: 8,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.59 : 20,679.32 = 5,465.89 : x
  2. Step 2: Convert to fraction form
    13,784.59/20,679.32 = 5,465.89/x
  3. Step 3: Cross multiply
    13,784.59x = 20,679.32 × 5,465.89
  4. Step 4: Simplify right side
    13,784.59x = 113,030,888.39
  5. Step 5: Solve for x
    x = 113,030,888.39/13,784.59
  6. Step 6: Final answer
    x = 8,199.80

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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.