Home / 12,378.89-18,566.03-3,492.03

Finding the Fourth Proportional to 12,378.89, 18,566.03 and 3,492.03

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Solution

The fourth proportional to 12,378.89, 18,566.03 and 3,492.03 is: 5,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.89 : 18,566.03 = 3,492.03 : x
  2. Step 2: Convert to fraction form
    12,378.89/18,566.03 = 3,492.03/x
  3. Step 3: Cross multiply
    12,378.89x = 18,566.03 × 3,492.03
  4. Step 4: Simplify right side
    12,378.89x = 64,833,116.28
  5. Step 5: Solve for x
    x = 64,833,116.28/12,378.89
  6. Step 6: Final answer
    x = 5,237.39

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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.