Home / 13,145.63-19,716.81-5,354.51

Finding the Fourth Proportional to 13,145.63, 19,716.81 and 5,354.51

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Solution

The fourth proportional to 13,145.63, 19,716.81 and 5,354.51 is: 8,031.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.63 : 19,716.81 = 5,354.51 : x
  2. Step 2: Convert to fraction form
    13,145.63/19,716.81 = 5,354.51/x
  3. Step 3: Cross multiply
    13,145.63x = 19,716.81 × 5,354.51
  4. Step 4: Simplify right side
    13,145.63x = 105,573,757.73
  5. Step 5: Solve for x
    x = 105,573,757.73/13,145.63
  6. Step 6: Final answer
    x = 8,031.09

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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.