Home / 8,013.40-12,012.76-3,628.48

Finding the Fourth Proportional to 8,013.40, 12,012.76 and 3,628.48

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Solution

The fourth proportional to 8,013.40, 12,012.76 and 3,628.48 is: 5,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.40 : 12,012.76 = 3,628.48 : x
  2. Step 2: Convert to fraction form
    8,013.40/12,012.76 = 3,628.48/x
  3. Step 3: Cross multiply
    8,013.40x = 12,012.76 × 3,628.48
  4. Step 4: Simplify right side
    8,013.40x = 43,588,059.40
  5. Step 5: Solve for x
    x = 43,588,059.40/8,013.40
  6. Step 6: Final answer
    x = 5,439.40

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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.