Home / 13,604.90-20,409.40-4,837.72

Finding the Fourth Proportional to 13,604.90, 20,409.40 and 4,837.72

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Solution

The fourth proportional to 13,604.90, 20,409.40 and 4,837.72 is: 7,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.90 : 20,409.40 = 4,837.72 : x
  2. Step 2: Convert to fraction form
    13,604.90/20,409.40 = 4,837.72/x
  3. Step 3: Cross multiply
    13,604.90x = 20,409.40 × 4,837.72
  4. Step 4: Simplify right side
    13,604.90x = 98,734,962.57
  5. Step 5: Solve for x
    x = 98,734,962.57/13,604.90
  6. Step 6: Final answer
    x = 7,257.31

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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.