Home / 13,363.23-20,038.92-7,122.08

Finding the Fourth Proportional to 13,363.23, 20,038.92 and 7,122.08

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Solution

The fourth proportional to 13,363.23, 20,038.92 and 7,122.08 is: 10,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.23 : 20,038.92 = 7,122.08 : x
  2. Step 2: Convert to fraction form
    13,363.23/20,038.92 = 7,122.08/x
  3. Step 3: Cross multiply
    13,363.23x = 20,038.92 × 7,122.08
  4. Step 4: Simplify right side
    13,363.23x = 142,718,791.35
  5. Step 5: Solve for x
    x = 142,718,791.35/13,363.23
  6. Step 6: Final answer
    x = 10,679.96

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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.