Home / 13,643.64-18,837.36-10,299.96

Finding the Fourth Proportional to 13,643.64, 18,837.36 and 10,299.96

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Solution

The fourth proportional to 13,643.64, 18,837.36 and 10,299.96 is: 14,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.64 : 18,837.36 = 10,299.96 : x
  2. Step 2: Convert to fraction form
    13,643.64/18,837.36 = 10,299.96/x
  3. Step 3: Cross multiply
    13,643.64x = 18,837.36 × 10,299.96
  4. Step 4: Simplify right side
    13,643.64x = 194,024,054.51
  5. Step 5: Solve for x
    x = 194,024,054.51/13,643.64
  6. Step 6: Final answer
    x = 14,220.84

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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.