Home / 12,721.67-19,093.49-8,828.81

Finding the Fourth Proportional to 12,721.67, 19,093.49 and 8,828.81

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Solution

The fourth proportional to 12,721.67, 19,093.49 and 8,828.81 is: 13,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.67 : 19,093.49 = 8,828.81 : x
  2. Step 2: Convert to fraction form
    12,721.67/19,093.49 = 8,828.81/x
  3. Step 3: Cross multiply
    12,721.67x = 19,093.49 × 8,828.81
  4. Step 4: Simplify right side
    12,721.67x = 168,572,795.45
  5. Step 5: Solve for x
    x = 168,572,795.45/12,721.67
  6. Step 6: Final answer
    x = 13,250.84

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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.