Home / 10,369.45-15,554.99-5,107.29

Finding the Fourth Proportional to 10,369.45, 15,554.99 and 5,107.29

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Solution

The fourth proportional to 10,369.45, 15,554.99 and 5,107.29 is: 7,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.45 : 15,554.99 = 5,107.29 : x
  2. Step 2: Convert to fraction form
    10,369.45/15,554.99 = 5,107.29/x
  3. Step 3: Cross multiply
    10,369.45x = 15,554.99 × 5,107.29
  4. Step 4: Simplify right side
    10,369.45x = 79,443,844.88
  5. Step 5: Solve for x
    x = 79,443,844.88/10,369.45
  6. Step 6: Final answer
    x = 7,661.34

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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.