Home / 13,230.42-19,834.56-4,905.78

Finding the Fourth Proportional to 13,230.42, 19,834.56 and 4,905.78

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Solution

The fourth proportional to 13,230.42, 19,834.56 and 4,905.78 is: 7,354.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.42 : 19,834.56 = 4,905.78 : x
  2. Step 2: Convert to fraction form
    13,230.42/19,834.56 = 4,905.78/x
  3. Step 3: Cross multiply
    13,230.42x = 19,834.56 × 4,905.78
  4. Step 4: Simplify right side
    13,230.42x = 97,303,987.76
  5. Step 5: Solve for x
    x = 97,303,987.76/13,230.42
  6. Step 6: Final answer
    x = 7,354.57

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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.