Home / 12,209.57-18,314.35-2,975.57

Finding the Fourth Proportional to 12,209.57, 18,314.35 and 2,975.57

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Solution

The fourth proportional to 12,209.57, 18,314.35 and 2,975.57 is: 4,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.57 : 18,314.35 = 2,975.57 : x
  2. Step 2: Convert to fraction form
    12,209.57/18,314.35 = 2,975.57/x
  3. Step 3: Cross multiply
    12,209.57x = 18,314.35 × 2,975.57
  4. Step 4: Simplify right side
    12,209.57x = 54,495,523.98
  5. Step 5: Solve for x
    x = 54,495,523.98/12,209.57
  6. Step 6: Final answer
    x = 4,463.35

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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.