Home / 18,885.05-28,328.21-5,737.38

Finding the Fourth Proportional to 18,885.05, 28,328.21 and 5,737.38

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Solution

The fourth proportional to 18,885.05, 28,328.21 and 5,737.38 is: 8,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.05 : 28,328.21 = 5,737.38 : x
  2. Step 2: Convert to fraction form
    18,885.05/28,328.21 = 5,737.38/x
  3. Step 3: Cross multiply
    18,885.05x = 28,328.21 × 5,737.38
  4. Step 4: Simplify right side
    18,885.05x = 162,529,705.49
  5. Step 5: Solve for x
    x = 162,529,705.49/18,885.05
  6. Step 6: Final answer
    x = 8,606.26

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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.