Home / 10,512.09-15,768.86-3,116.25

Finding the Fourth Proportional to 10,512.09, 15,768.86 and 3,116.25

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Solution

The fourth proportional to 10,512.09, 15,768.86 and 3,116.25 is: 4,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.09 : 15,768.86 = 3,116.25 : x
  2. Step 2: Convert to fraction form
    10,512.09/15,768.86 = 3,116.25/x
  3. Step 3: Cross multiply
    10,512.09x = 15,768.86 × 3,116.25
  4. Step 4: Simplify right side
    10,512.09x = 49,139,709.98
  5. Step 5: Solve for x
    x = 49,139,709.98/10,512.09
  6. Step 6: Final answer
    x = 4,674.59

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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.