Home / 13,897.41-19,178.35-7,930.95

Finding the Fourth Proportional to 13,897.41, 19,178.35 and 7,930.95

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Solution

The fourth proportional to 13,897.41, 19,178.35 and 7,930.95 is: 10,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.41 : 19,178.35 = 7,930.95 : x
  2. Step 2: Convert to fraction form
    13,897.41/19,178.35 = 7,930.95/x
  3. Step 3: Cross multiply
    13,897.41x = 19,178.35 × 7,930.95
  4. Step 4: Simplify right side
    13,897.41x = 152,102,534.93
  5. Step 5: Solve for x
    x = 152,102,534.93/13,897.41
  6. Step 6: Final answer
    x = 10,944.67

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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.