Home / 12,312.50-18,469.01-4,415.54

Finding the Fourth Proportional to 12,312.50, 18,469.01 and 4,415.54

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Solution

The fourth proportional to 12,312.50, 18,469.01 and 4,415.54 is: 6,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.50 : 18,469.01 = 4,415.54 : x
  2. Step 2: Convert to fraction form
    12,312.50/18,469.01 = 4,415.54/x
  3. Step 3: Cross multiply
    12,312.50x = 18,469.01 × 4,415.54
  4. Step 4: Simplify right side
    12,312.50x = 81,550,537.99
  5. Step 5: Solve for x
    x = 81,550,537.99/12,312.50
  6. Step 6: Final answer
    x = 6,623.40

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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.