Home / 13,166.09-18,170.91-7,502.88

Finding the Fourth Proportional to 13,166.09, 18,170.91 and 7,502.88

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Solution

The fourth proportional to 13,166.09, 18,170.91 and 7,502.88 is: 10,354.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.09 : 18,170.91 = 7,502.88 : x
  2. Step 2: Convert to fraction form
    13,166.09/18,170.91 = 7,502.88/x
  3. Step 3: Cross multiply
    13,166.09x = 18,170.91 × 7,502.88
  4. Step 4: Simplify right side
    13,166.09x = 136,334,157.22
  5. Step 5: Solve for x
    x = 136,334,157.22/13,166.09
  6. Step 6: Final answer
    x = 10,354.95

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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.