Home / 13,784.47-20,683.54-5,464.31

Finding the Fourth Proportional to 13,784.47, 20,683.54 and 5,464.31

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Solution

The fourth proportional to 13,784.47, 20,683.54 and 5,464.31 is: 8,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.47 : 20,683.54 = 5,464.31 : x
  2. Step 2: Convert to fraction form
    13,784.47/20,683.54 = 5,464.31/x
  3. Step 3: Cross multiply
    13,784.47x = 20,683.54 × 5,464.31
  4. Step 4: Simplify right side
    13,784.47x = 113,021,177.87
  5. Step 5: Solve for x
    x = 113,021,177.87/13,784.47
  6. Step 6: Final answer
    x = 8,199.17

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1.5x scale

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.