Home / 15,748.64-21,742.16-10,450.64

Finding the Fourth Proportional to 15,748.64, 21,742.16 and 10,450.64

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Solution

The fourth proportional to 15,748.64, 21,742.16 and 10,450.64 is: 14,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.64 : 21,742.16 = 10,450.64 : x
  2. Step 2: Convert to fraction form
    15,748.64/21,742.16 = 10,450.64/x
  3. Step 3: Cross multiply
    15,748.64x = 21,742.16 × 10,450.64
  4. Step 4: Simplify right side
    15,748.64x = 227,219,486.98
  5. Step 5: Solve for x
    x = 227,219,486.98/15,748.64
  6. Step 6: Final answer
    x = 14,427.88

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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.