Home / 13,164.09-18,168.15-7,500.88

Finding the Fourth Proportional to 13,164.09, 18,168.15 and 7,500.88

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Solution

The fourth proportional to 13,164.09, 18,168.15 and 7,500.88 is: 10,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.09 : 18,168.15 = 7,500.88 : x
  2. Step 2: Convert to fraction form
    13,164.09/18,168.15 = 7,500.88/x
  3. Step 3: Cross multiply
    13,164.09x = 18,168.15 × 7,500.88
  4. Step 4: Simplify right side
    13,164.09x = 136,277,117.99
  5. Step 5: Solve for x
    x = 136,277,117.99/13,164.09
  6. Step 6: Final answer
    x = 10,352.18

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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.