Home / 13,698.20-18,903.47-7,410.57

Finding the Fourth Proportional to 13,698.20, 18,903.47 and 7,410.57

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Solution

The fourth proportional to 13,698.20, 18,903.47 and 7,410.57 is: 10,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.20 : 18,903.47 = 7,410.57 : x
  2. Step 2: Convert to fraction form
    13,698.20/18,903.47 = 7,410.57/x
  3. Step 3: Cross multiply
    13,698.20x = 18,903.47 × 7,410.57
  4. Step 4: Simplify right side
    13,698.20x = 140,085,450.63
  5. Step 5: Solve for x
    x = 140,085,450.63/13,698.20
  6. Step 6: Final answer
    x = 10,226.56

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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.