Home / 18,868.05-26,045.85-12,736.96

Finding the Fourth Proportional to 18,868.05, 26,045.85 and 12,736.96

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Solution

The fourth proportional to 18,868.05, 26,045.85 and 12,736.96 is: 17,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.05 : 26,045.85 = 12,736.96 : x
  2. Step 2: Convert to fraction form
    18,868.05/26,045.85 = 12,736.96/x
  3. Step 3: Cross multiply
    18,868.05x = 26,045.85 × 12,736.96
  4. Step 4: Simplify right side
    18,868.05x = 331,744,932.26
  5. Step 5: Solve for x
    x = 331,744,932.26/18,868.05
  6. Step 6: Final answer
    x = 17,582.36

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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.