Home / 13,313.40-19,999.80-11,126.40

Finding the Fourth Proportional to 13,313.40, 19,999.80 and 11,126.40

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Solution

The fourth proportional to 13,313.40, 19,999.80 and 11,126.40 is: 16,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.40 : 19,999.80 = 11,126.40 : x
  2. Step 2: Convert to fraction form
    13,313.40/19,999.80 = 11,126.40/x
  3. Step 3: Cross multiply
    13,313.40x = 19,999.80 × 11,126.40
  4. Step 4: Simplify right side
    13,313.40x = 222,525,774.72
  5. Step 5: Solve for x
    x = 222,525,774.72/13,313.40
  6. Step 6: Final answer
    x = 16,714.42

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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.