Home / 12,341.70-18,515.43-3,576.78

Finding the Fourth Proportional to 12,341.70, 18,515.43 and 3,576.78

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Solution

The fourth proportional to 12,341.70, 18,515.43 and 3,576.78 is: 5,366.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.70 : 18,515.43 = 3,576.78 : x
  2. Step 2: Convert to fraction form
    12,341.70/18,515.43 = 3,576.78/x
  3. Step 3: Cross multiply
    12,341.70x = 18,515.43 × 3,576.78
  4. Step 4: Simplify right side
    12,341.70x = 66,225,619.72
  5. Step 5: Solve for x
    x = 66,225,619.72/12,341.70
  6. Step 6: Final answer
    x = 5,366.00

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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.