Home / 13,217.87-19,828.64-4,455.29

Finding the Fourth Proportional to 13,217.87, 19,828.64 and 4,455.29

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Solution

The fourth proportional to 13,217.87, 19,828.64 and 4,455.29 is: 6,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.87 : 19,828.64 = 4,455.29 : x
  2. Step 2: Convert to fraction form
    13,217.87/19,828.64 = 4,455.29/x
  3. Step 3: Cross multiply
    13,217.87x = 19,828.64 × 4,455.29
  4. Step 4: Simplify right side
    13,217.87x = 88,342,402.22
  5. Step 5: Solve for x
    x = 88,342,402.22/13,217.87
  6. Step 6: Final answer
    x = 6,683.56

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1.5x scale

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.