Home / 14,388.64-19,863.32-9,611.40

Finding the Fourth Proportional to 14,388.64, 19,863.32 and 9,611.40

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Solution

The fourth proportional to 14,388.64, 19,863.32 and 9,611.40 is: 13,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.64 : 19,863.32 = 9,611.40 : x
  2. Step 2: Convert to fraction form
    14,388.64/19,863.32 = 9,611.40/x
  3. Step 3: Cross multiply
    14,388.64x = 19,863.32 × 9,611.40
  4. Step 4: Simplify right side
    14,388.64x = 190,914,313.85
  5. Step 5: Solve for x
    x = 190,914,313.85/14,388.64
  6. Step 6: Final answer
    x = 13,268.41

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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.