Home / 13,176.30-18,182.78-7,207.82

Finding the Fourth Proportional to 13,176.30, 18,182.78 and 7,207.82

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Solution

The fourth proportional to 13,176.30, 18,182.78 and 7,207.82 is: 9,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.30 : 18,182.78 = 7,207.82 : x
  2. Step 2: Convert to fraction form
    13,176.30/18,182.78 = 7,207.82/x
  3. Step 3: Cross multiply
    13,176.30x = 18,182.78 × 7,207.82
  4. Step 4: Simplify right side
    13,176.30x = 131,058,173.60
  5. Step 5: Solve for x
    x = 131,058,173.60/13,176.30
  6. Step 6: Final answer
    x = 9,946.51

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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.