Home / 13,563.02-18,684.60-11,157.32

Finding the Fourth Proportional to 13,563.02, 18,684.60 and 11,157.32

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Solution

The fourth proportional to 13,563.02, 18,684.60 and 11,157.32 is: 15,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.02 : 18,684.60 = 11,157.32 : x
  2. Step 2: Convert to fraction form
    13,563.02/18,684.60 = 11,157.32/x
  3. Step 3: Cross multiply
    13,563.02x = 18,684.60 × 11,157.32
  4. Step 4: Simplify right side
    13,563.02x = 208,470,061.27
  5. Step 5: Solve for x
    x = 208,470,061.27/13,563.02
  6. Step 6: Final answer
    x = 15,370.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.