Home / 13,851.07-20,771.47-5,528.59

Finding the Fourth Proportional to 13,851.07, 20,771.47 and 5,528.59

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Solution

The fourth proportional to 13,851.07, 20,771.47 and 5,528.59 is: 8,290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.07 : 20,771.47 = 5,528.59 : x
  2. Step 2: Convert to fraction form
    13,851.07/20,771.47 = 5,528.59/x
  3. Step 3: Cross multiply
    13,851.07x = 20,771.47 × 5,528.59
  4. Step 4: Simplify right side
    13,851.07x = 114,836,941.33
  5. Step 5: Solve for x
    x = 114,836,941.33/13,851.07
  6. Step 6: Final answer
    x = 8,290.84

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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.