Home / 13,995.45-19,317.69-9,218.88

Finding the Fourth Proportional to 13,995.45, 19,317.69 and 9,218.88

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Solution

The fourth proportional to 13,995.45, 19,317.69 and 9,218.88 is: 12,724.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.45 : 19,317.69 = 9,218.88 : x
  2. Step 2: Convert to fraction form
    13,995.45/19,317.69 = 9,218.88/x
  3. Step 3: Cross multiply
    13,995.45x = 19,317.69 × 9,218.88
  4. Step 4: Simplify right side
    13,995.45x = 178,087,465.99
  5. Step 5: Solve for x
    x = 178,087,465.99/13,995.45
  6. Step 6: Final answer
    x = 12,724.67

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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.