Home / 13,256.75-19,880.90-4,370.43

Finding the Fourth Proportional to 13,256.75, 19,880.90 and 4,370.43

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Solution

The fourth proportional to 13,256.75, 19,880.90 and 4,370.43 is: 6,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.75 : 19,880.90 = 4,370.43 : x
  2. Step 2: Convert to fraction form
    13,256.75/19,880.90 = 4,370.43/x
  3. Step 3: Cross multiply
    13,256.75x = 19,880.90 × 4,370.43
  4. Step 4: Simplify right side
    13,256.75x = 86,887,982.38
  5. Step 5: Solve for x
    x = 86,887,982.38/13,256.75
  6. Step 6: Final answer
    x = 6,554.24

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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.