Home / 10,420.06-15,631.71-3,492.94

Finding the Fourth Proportional to 10,420.06, 15,631.71 and 3,492.94

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Solution

The fourth proportional to 10,420.06, 15,631.71 and 3,492.94 is: 5,239.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.06 : 15,631.71 = 3,492.94 : x
  2. Step 2: Convert to fraction form
    10,420.06/15,631.71 = 3,492.94/x
  3. Step 3: Cross multiply
    10,420.06x = 15,631.71 × 3,492.94
  4. Step 4: Simplify right side
    10,420.06x = 54,600,586.05
  5. Step 5: Solve for x
    x = 54,600,586.05/10,420.06
  6. Step 6: Final answer
    x = 5,239.95

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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.