Home / 18,678.72-28,026.58-6,992.84

Finding the Fourth Proportional to 18,678.72, 28,026.58 and 6,992.84

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Solution

The fourth proportional to 18,678.72, 28,026.58 and 6,992.84 is: 10,492.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.72 : 28,026.58 = 6,992.84 : x
  2. Step 2: Convert to fraction form
    18,678.72/28,026.58 = 6,992.84/x
  3. Step 3: Cross multiply
    18,678.72x = 28,026.58 × 6,992.84
  4. Step 4: Simplify right side
    18,678.72x = 195,985,389.69
  5. Step 5: Solve for x
    x = 195,985,389.69/18,678.72
  6. Step 6: Final answer
    x = 10,492.44

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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.