Home / 10,778.68-16,170.18-3,384.28

Finding the Fourth Proportional to 10,778.68, 16,170.18 and 3,384.28

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Solution

The fourth proportional to 10,778.68, 16,170.18 and 3,384.28 is: 5,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.68 : 16,170.18 = 3,384.28 : x
  2. Step 2: Convert to fraction form
    10,778.68/16,170.18 = 3,384.28/x
  3. Step 3: Cross multiply
    10,778.68x = 16,170.18 × 3,384.28
  4. Step 4: Simplify right side
    10,778.68x = 54,724,416.77
  5. Step 5: Solve for x
    x = 54,724,416.77/10,778.68
  6. Step 6: Final answer
    x = 5,077.10

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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.