Home / 12,495.99-18,737.81-4,173.15

Finding the Fourth Proportional to 12,495.99, 18,737.81 and 4,173.15

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Solution

The fourth proportional to 12,495.99, 18,737.81 and 4,173.15 is: 6,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.99 : 18,737.81 = 4,173.15 : x
  2. Step 2: Convert to fraction form
    12,495.99/18,737.81 = 4,173.15/x
  3. Step 3: Cross multiply
    12,495.99x = 18,737.81 × 4,173.15
  4. Step 4: Simplify right side
    12,495.99x = 78,195,670.94
  5. Step 5: Solve for x
    x = 78,195,670.94/12,495.99
  6. Step 6: Final answer
    x = 6,257.66

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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.