Home / 13,615.46-20,405.02-7,277.35

Finding the Fourth Proportional to 13,615.46, 20,405.02 and 7,277.35

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Solution

The fourth proportional to 13,615.46, 20,405.02 and 7,277.35 is: 10,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.46 : 20,405.02 = 7,277.35 : x
  2. Step 2: Convert to fraction form
    13,615.46/20,405.02 = 7,277.35/x
  3. Step 3: Cross multiply
    13,615.46x = 20,405.02 × 7,277.35
  4. Step 4: Simplify right side
    13,615.46x = 148,494,333.89
  5. Step 5: Solve for x
    x = 148,494,333.89/13,615.46
  6. Step 6: Final answer
    x = 10,906.30

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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.