Home / 10,440.89-15,653.29-3,416.65

Finding the Fourth Proportional to 10,440.89, 15,653.29 and 3,416.65

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Solution

The fourth proportional to 10,440.89, 15,653.29 and 3,416.65 is: 5,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.89 : 15,653.29 = 3,416.65 : x
  2. Step 2: Convert to fraction form
    10,440.89/15,653.29 = 3,416.65/x
  3. Step 3: Cross multiply
    10,440.89x = 15,653.29 × 3,416.65
  4. Step 4: Simplify right side
    10,440.89x = 53,481,813.28
  5. Step 5: Solve for x
    x = 53,481,813.28/10,440.89
  6. Step 6: Final answer
    x = 5,122.34

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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.