Home / 13,179.54-18,160.84-9,394.67

Finding the Fourth Proportional to 13,179.54, 18,160.84 and 9,394.67

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Solution

The fourth proportional to 13,179.54, 18,160.84 and 9,394.67 is: 12,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.54 : 18,160.84 = 9,394.67 : x
  2. Step 2: Convert to fraction form
    13,179.54/18,160.84 = 9,394.67/x
  3. Step 3: Cross multiply
    13,179.54x = 18,160.84 × 9,394.67
  4. Step 4: Simplify right side
    13,179.54x = 170,615,053.71
  5. Step 5: Solve for x
    x = 170,615,053.71/13,179.54
  6. Step 6: Final answer
    x = 12,945.44

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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.