Home / 10,419.87-15,631.43-3,492.75

Finding the Fourth Proportional to 10,419.87, 15,631.43 and 3,492.75

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Solution

The fourth proportional to 10,419.87, 15,631.43 and 3,492.75 is: 5,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.87 : 15,631.43 = 3,492.75 : x
  2. Step 2: Convert to fraction form
    10,419.87/15,631.43 = 3,492.75/x
  3. Step 3: Cross multiply
    10,419.87x = 15,631.43 × 3,492.75
  4. Step 4: Simplify right side
    10,419.87x = 54,596,659.67
  5. Step 5: Solve for x
    x = 54,596,659.67/10,419.87
  6. Step 6: Final answer
    x = 5,239.67

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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.