Home / 12,776.16-19,165.32-3,416.28

Finding the Fourth Proportional to 12,776.16, 19,165.32 and 3,416.28

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Solution

The fourth proportional to 12,776.16, 19,165.32 and 3,416.28 is: 5,124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.16 : 19,165.32 = 3,416.28 : x
  2. Step 2: Convert to fraction form
    12,776.16/19,165.32 = 3,416.28/x
  3. Step 3: Cross multiply
    12,776.16x = 19,165.32 × 3,416.28
  4. Step 4: Simplify right side
    12,776.16x = 65,474,099.41
  5. Step 5: Solve for x
    x = 65,474,099.41/12,776.16
  6. Step 6: Final answer
    x = 5,124.71

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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.