Home / 13,499.98-20,152.31-11,662.90

Finding the Fourth Proportional to 13,499.98, 20,152.31 and 11,662.90

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Solution

The fourth proportional to 13,499.98, 20,152.31 and 11,662.90 is: 17,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.98 : 20,152.31 = 11,662.90 : x
  2. Step 2: Convert to fraction form
    13,499.98/20,152.31 = 11,662.90/x
  3. Step 3: Cross multiply
    13,499.98x = 20,152.31 × 11,662.90
  4. Step 4: Simplify right side
    13,499.98x = 235,034,376.30
  5. Step 5: Solve for x
    x = 235,034,376.30/13,499.98
  6. Step 6: Final answer
    x = 17,409.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.