Home / 13,619.36-20,446.32-11,580.32

Finding the Fourth Proportional to 13,619.36, 20,446.32 and 11,580.32

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Solution

The fourth proportional to 13,619.36, 20,446.32 and 11,580.32 is: 17,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.36 : 20,446.32 = 11,580.32 : x
  2. Step 2: Convert to fraction form
    13,619.36/20,446.32 = 11,580.32/x
  3. Step 3: Cross multiply
    13,619.36x = 20,446.32 × 11,580.32
  4. Step 4: Simplify right side
    13,619.36x = 236,774,928.42
  5. Step 5: Solve for x
    x = 236,774,928.42/13,619.36
  6. Step 6: Final answer
    x = 17,385.17

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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.