Home / 18,874.17-26,051.81-15,123.51

Finding the Fourth Proportional to 18,874.17, 26,051.81 and 15,123.51

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Solution

The fourth proportional to 18,874.17, 26,051.81 and 15,123.51 is: 20,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.17 : 26,051.81 = 15,123.51 : x
  2. Step 2: Convert to fraction form
    18,874.17/26,051.81 = 15,123.51/x
  3. Step 3: Cross multiply
    18,874.17x = 26,051.81 × 15,123.51
  4. Step 4: Simplify right side
    18,874.17x = 393,994,733.44
  5. Step 5: Solve for x
    x = 393,994,733.44/18,874.17
  6. Step 6: Final answer
    x = 20,874.81

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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.