Home / 13,653.04-20,485.32-12,563.32

Finding the Fourth Proportional to 13,653.04, 20,485.32 and 12,563.32

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Solution

The fourth proportional to 13,653.04, 20,485.32 and 12,563.32 is: 18,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.04 : 20,485.32 = 12,563.32 : x
  2. Step 2: Convert to fraction form
    13,653.04/20,485.32 = 12,563.32/x
  3. Step 3: Cross multiply
    13,653.04x = 20,485.32 × 12,563.32
  4. Step 4: Simplify right side
    13,653.04x = 257,363,630.46
  5. Step 5: Solve for x
    x = 257,363,630.46/13,653.04
  6. Step 6: Final answer
    x = 18,850.28

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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.