Home / 18,904.86-26,072.28-12,188.34

Finding the Fourth Proportional to 18,904.86, 26,072.28 and 12,188.34

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Solution

The fourth proportional to 18,904.86, 26,072.28 and 12,188.34 is: 16,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.86 : 26,072.28 = 12,188.34 : x
  2. Step 2: Convert to fraction form
    18,904.86/26,072.28 = 12,188.34/x
  3. Step 3: Cross multiply
    18,904.86x = 26,072.28 × 12,188.34
  4. Step 4: Simplify right side
    18,904.86x = 317,777,813.22
  5. Step 5: Solve for x
    x = 317,777,813.22/18,904.86
  6. Step 6: Final answer
    x = 16,809.32

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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.