Home / 18,580.90-25,630.41-12,295.30

Finding the Fourth Proportional to 18,580.90, 25,630.41 and 12,295.30

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Solution

The fourth proportional to 18,580.90, 25,630.41 and 12,295.30 is: 16,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,580.90 : 25,630.41 = 12,295.30 : x
  2. Step 2: Convert to fraction form
    18,580.90/25,630.41 = 12,295.30/x
  3. Step 3: Cross multiply
    18,580.90x = 25,630.41 × 12,295.30
  4. Step 4: Simplify right side
    18,580.90x = 315,133,580.07
  5. Step 5: Solve for x
    x = 315,133,580.07/18,580.90
  6. Step 6: Final answer
    x = 16,960.08

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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.