Home / 13,173.08-18,179.36-7,508.72

Finding the Fourth Proportional to 13,173.08, 18,179.36 and 7,508.72

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Solution

The fourth proportional to 13,173.08, 18,179.36 and 7,508.72 is: 10,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.08 : 18,179.36 = 7,508.72 : x
  2. Step 2: Convert to fraction form
    13,173.08/18,179.36 = 7,508.72/x
  3. Step 3: Cross multiply
    13,173.08x = 18,179.36 × 7,508.72
  4. Step 4: Simplify right side
    13,173.08x = 136,503,686.48
  5. Step 5: Solve for x
    x = 136,503,686.48/13,173.08
  6. Step 6: Final answer
    x = 10,362.32

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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.