Home / 13,563.51-20,339.79-4,201.32

Finding the Fourth Proportional to 13,563.51, 20,339.79 and 4,201.32

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Solution

The fourth proportional to 13,563.51, 20,339.79 and 4,201.32 is: 6,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.51 : 20,339.79 = 4,201.32 : x
  2. Step 2: Convert to fraction form
    13,563.51/20,339.79 = 4,201.32/x
  3. Step 3: Cross multiply
    13,563.51x = 20,339.79 × 4,201.32
  4. Step 4: Simplify right side
    13,563.51x = 85,453,966.52
  5. Step 5: Solve for x
    x = 85,453,966.52/13,563.51
  6. Step 6: Final answer
    x = 6,300.28

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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.