Home / 13,765.08-20,639.10-9,369.20

Finding the Fourth Proportional to 13,765.08, 20,639.10 and 9,369.20

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Solution

The fourth proportional to 13,765.08, 20,639.10 and 9,369.20 is: 14,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.08 : 20,639.10 = 9,369.20 : x
  2. Step 2: Convert to fraction form
    13,765.08/20,639.10 = 9,369.20/x
  3. Step 3: Cross multiply
    13,765.08x = 20,639.10 × 9,369.20
  4. Step 4: Simplify right side
    13,765.08x = 193,371,855.72
  5. Step 5: Solve for x
    x = 193,371,855.72/13,765.08
  6. Step 6: Final answer
    x = 14,048.00

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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.