Home / 13,608.12-20,417.48-10,999.92

Finding the Fourth Proportional to 13,608.12, 20,417.48 and 10,999.92

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Solution

The fourth proportional to 13,608.12, 20,417.48 and 10,999.92 is: 16,504.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.12 : 20,417.48 = 10,999.92 : x
  2. Step 2: Convert to fraction form
    13,608.12/20,417.48 = 10,999.92/x
  3. Step 3: Cross multiply
    13,608.12x = 20,417.48 × 10,999.92
  4. Step 4: Simplify right side
    13,608.12x = 224,590,646.60
  5. Step 5: Solve for x
    x = 224,590,646.60/13,608.12
  6. Step 6: Final answer
    x = 16,504.16

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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.