Home / 10,615.92-14,645.76-6,138.84

Finding the Fourth Proportional to 10,615.92, 14,645.76 and 6,138.84

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Solution

The fourth proportional to 10,615.92, 14,645.76 and 6,138.84 is: 8,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.92 : 14,645.76 = 6,138.84 : x
  2. Step 2: Convert to fraction form
    10,615.92/14,645.76 = 6,138.84/x
  3. Step 3: Cross multiply
    10,615.92x = 14,645.76 × 6,138.84
  4. Step 4: Simplify right side
    10,615.92x = 89,907,977.32
  5. Step 5: Solve for x
    x = 89,907,977.32/10,615.92
  6. Step 6: Final answer
    x = 8,469.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.