Home / 13,278.88-18,324.98-7,310.67

Finding the Fourth Proportional to 13,278.88, 18,324.98 and 7,310.67

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Solution

The fourth proportional to 13,278.88, 18,324.98 and 7,310.67 is: 10,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.88 : 18,324.98 = 7,310.67 : x
  2. Step 2: Convert to fraction form
    13,278.88/18,324.98 = 7,310.67/x
  3. Step 3: Cross multiply
    13,278.88x = 18,324.98 × 7,310.67
  4. Step 4: Simplify right side
    13,278.88x = 133,967,881.54
  5. Step 5: Solve for x
    x = 133,967,881.54/13,278.88
  6. Step 6: Final answer
    x = 10,088.79

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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.