Home / 10,809.45-16,215.26-3,312.93

Finding the Fourth Proportional to 10,809.45, 16,215.26 and 3,312.93

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Solution

The fourth proportional to 10,809.45, 16,215.26 and 3,312.93 is: 4,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.45 : 16,215.26 = 3,312.93 : x
  2. Step 2: Convert to fraction form
    10,809.45/16,215.26 = 3,312.93/x
  3. Step 3: Cross multiply
    10,809.45x = 16,215.26 × 3,312.93
  4. Step 4: Simplify right side
    10,809.45x = 53,720,021.31
  5. Step 5: Solve for x
    x = 53,720,021.31/10,809.45
  6. Step 6: Final answer
    x = 4,969.73

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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.