Home / 11,145.64-16,744.57-10,515.15

Finding the Fourth Proportional to 11,145.64, 16,744.57 and 10,515.15

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Solution

The fourth proportional to 11,145.64, 16,744.57 and 10,515.15 is: 15,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.64 : 16,744.57 = 10,515.15 : x
  2. Step 2: Convert to fraction form
    11,145.64/16,744.57 = 10,515.15/x
  3. Step 3: Cross multiply
    11,145.64x = 16,744.57 × 10,515.15
  4. Step 4: Simplify right side
    11,145.64x = 176,071,665.24
  5. Step 5: Solve for x
    x = 176,071,665.24/11,145.64
  6. Step 6: Final answer
    x = 15,797.37

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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.