Home / 13,062.87-18,017.24-8,284.28

Finding the Fourth Proportional to 13,062.87, 18,017.24 and 8,284.28

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Solution

The fourth proportional to 13,062.87, 18,017.24 and 8,284.28 is: 11,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.87 : 18,017.24 = 8,284.28 : x
  2. Step 2: Convert to fraction form
    13,062.87/18,017.24 = 8,284.28/x
  3. Step 3: Cross multiply
    13,062.87x = 18,017.24 × 8,284.28
  4. Step 4: Simplify right side
    13,062.87x = 149,259,729.48
  5. Step 5: Solve for x
    x = 149,259,729.48/13,062.87
  6. Step 6: Final answer
    x = 11,426.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.