Home / 13,235.70-18,266.20-8,751.66

Finding the Fourth Proportional to 13,235.70, 18,266.20 and 8,751.66

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Solution

The fourth proportional to 13,235.70, 18,266.20 and 8,751.66 is: 12,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.70 : 18,266.20 = 8,751.66 : x
  2. Step 2: Convert to fraction form
    13,235.70/18,266.20 = 8,751.66/x
  3. Step 3: Cross multiply
    13,235.70x = 18,266.20 × 8,751.66
  4. Step 4: Simplify right side
    13,235.70x = 159,859,571.89
  5. Step 5: Solve for x
    x = 159,859,571.89/13,235.70
  6. Step 6: Final answer
    x = 12,077.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.