Home / 18,975.72-28,466.92-6,492.81

Finding the Fourth Proportional to 18,975.72, 28,466.92 and 6,492.81

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Solution

The fourth proportional to 18,975.72, 28,466.92 and 6,492.81 is: 9,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.72 : 28,466.92 = 6,492.81 : x
  2. Step 2: Convert to fraction form
    18,975.72/28,466.92 = 6,492.81/x
  3. Step 3: Cross multiply
    18,975.72x = 28,466.92 × 6,492.81
  4. Step 4: Simplify right side
    18,975.72x = 184,830,144.28
  5. Step 5: Solve for x
    x = 184,830,144.28/18,975.72
  6. Step 6: Final answer
    x = 9,740.35

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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.