Home / 13,402.45-18,497.83-7,736.42

Finding the Fourth Proportional to 13,402.45, 18,497.83 and 7,736.42

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Solution

The fourth proportional to 13,402.45, 18,497.83 and 7,736.42 is: 10,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.45 : 18,497.83 = 7,736.42 : x
  2. Step 2: Convert to fraction form
    13,402.45/18,497.83 = 7,736.42/x
  3. Step 3: Cross multiply
    13,402.45x = 18,497.83 × 7,736.42
  4. Step 4: Simplify right side
    13,402.45x = 143,106,981.97
  5. Step 5: Solve for x
    x = 143,106,981.97/13,402.45
  6. Step 6: Final answer
    x = 10,677.67

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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.