Home / 13,267.72-18,309.90-7,299.64

Finding the Fourth Proportional to 13,267.72, 18,309.90 and 7,299.64

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Solution

The fourth proportional to 13,267.72, 18,309.90 and 7,299.64 is: 10,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.72 : 18,309.90 = 7,299.64 : x
  2. Step 2: Convert to fraction form
    13,267.72/18,309.90 = 7,299.64/x
  3. Step 3: Cross multiply
    13,267.72x = 18,309.90 × 7,299.64
  4. Step 4: Simplify right side
    13,267.72x = 133,655,678.44
  5. Step 5: Solve for x
    x = 133,655,678.44/13,267.72
  6. Step 6: Final answer
    x = 10,073.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.