Home / 13,078.35-19,625.63-5,287.23

Finding the Fourth Proportional to 13,078.35, 19,625.63 and 5,287.23

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Solution

The fourth proportional to 13,078.35, 19,625.63 and 5,287.23 is: 7,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.35 : 19,625.63 = 5,287.23 : x
  2. Step 2: Convert to fraction form
    13,078.35/19,625.63 = 5,287.23/x
  3. Step 3: Cross multiply
    13,078.35x = 19,625.63 × 5,287.23
  4. Step 4: Simplify right side
    13,078.35x = 103,765,193.27
  5. Step 5: Solve for x
    x = 103,765,193.27/13,078.35
  6. Step 6: Final answer
    x = 7,934.12

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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.