Home / 13,371.90-20,038.70-7,516.20

Finding the Fourth Proportional to 13,371.90, 20,038.70 and 7,516.20

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Solution

The fourth proportional to 13,371.90, 20,038.70 and 7,516.20 is: 11,263.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.90 : 20,038.70 = 7,516.20 : x
  2. Step 2: Convert to fraction form
    13,371.90/20,038.70 = 7,516.20/x
  3. Step 3: Cross multiply
    13,371.90x = 20,038.70 × 7,516.20
  4. Step 4: Simplify right side
    13,371.90x = 150,614,876.94
  5. Step 5: Solve for x
    x = 150,614,876.94/13,371.90
  6. Step 6: Final answer
    x = 11,263.54

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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.