Home / 12,314.94-18,455.38-10,667.40

Finding the Fourth Proportional to 12,314.94, 18,455.38 and 10,667.40

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Solution

The fourth proportional to 12,314.94, 18,455.38 and 10,667.40 is: 15,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.94 : 18,455.38 = 10,667.40 : x
  2. Step 2: Convert to fraction form
    12,314.94/18,455.38 = 10,667.40/x
  3. Step 3: Cross multiply
    12,314.94x = 18,455.38 × 10,667.40
  4. Step 4: Simplify right side
    12,314.94x = 196,870,824.74
  5. Step 5: Solve for x
    x = 196,870,824.74/12,314.94
  6. Step 6: Final answer
    x = 15,986.35

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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.