Home / 13,170.96-18,176.26-7,868.84

Finding the Fourth Proportional to 13,170.96, 18,176.26 and 7,868.84

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Solution

The fourth proportional to 13,170.96, 18,176.26 and 7,868.84 is: 10,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.96 : 18,176.26 = 7,868.84 : x
  2. Step 2: Convert to fraction form
    13,170.96/18,176.26 = 7,868.84/x
  3. Step 3: Cross multiply
    13,170.96x = 18,176.26 × 7,868.84
  4. Step 4: Simplify right side
    13,170.96x = 143,026,081.74
  5. Step 5: Solve for x
    x = 143,026,081.74/13,170.96
  6. Step 6: Final answer
    x = 10,859.20

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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.