Home / 18,198.40-25,114.26-10,643.50

Finding the Fourth Proportional to 18,198.40, 25,114.26 and 10,643.50

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Solution

The fourth proportional to 18,198.40, 25,114.26 and 10,643.50 is: 14,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.40 : 25,114.26 = 10,643.50 : x
  2. Step 2: Convert to fraction form
    18,198.40/25,114.26 = 10,643.50/x
  3. Step 3: Cross multiply
    18,198.40x = 25,114.26 × 10,643.50
  4. Step 4: Simplify right side
    18,198.40x = 267,303,626.31
  5. Step 5: Solve for x
    x = 267,303,626.31/18,198.40
  6. Step 6: Final answer
    x = 14,688.30

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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.