Home / 13,179.14-18,186.84-7,210.68

Finding the Fourth Proportional to 13,179.14, 18,186.84 and 7,210.68

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Solution

The fourth proportional to 13,179.14, 18,186.84 and 7,210.68 is: 9,950.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.14 : 18,186.84 = 7,210.68 : x
  2. Step 2: Convert to fraction form
    13,179.14/18,186.84 = 7,210.68/x
  3. Step 3: Cross multiply
    13,179.14x = 18,186.84 × 7,210.68
  4. Step 4: Simplify right side
    13,179.14x = 131,139,483.45
  5. Step 5: Solve for x
    x = 131,139,483.45/13,179.14
  6. Step 6: Final answer
    x = 9,950.53

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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.