Home / 13,615.56-20,425.08-4,851.36

Finding the Fourth Proportional to 13,615.56, 20,425.08 and 4,851.36

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Solution

The fourth proportional to 13,615.56, 20,425.08 and 4,851.36 is: 7,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.56 : 20,425.08 = 4,851.36 : x
  2. Step 2: Convert to fraction form
    13,615.56/20,425.08 = 4,851.36/x
  3. Step 3: Cross multiply
    13,615.56x = 20,425.08 × 4,851.36
  4. Step 4: Simplify right side
    13,615.56x = 99,089,416.11
  5. Step 5: Solve for x
    x = 99,089,416.11/13,615.56
  6. Step 6: Final answer
    x = 7,277.66

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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.