Home / 14,078.14-19,427.97-7,790.50

Finding the Fourth Proportional to 14,078.14, 19,427.97 and 7,790.50

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Solution

The fourth proportional to 14,078.14, 19,427.97 and 7,790.50 is: 10,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.14 : 19,427.97 = 7,790.50 : x
  2. Step 2: Convert to fraction form
    14,078.14/19,427.97 = 7,790.50/x
  3. Step 3: Cross multiply
    14,078.14x = 19,427.97 × 7,790.50
  4. Step 4: Simplify right side
    14,078.14x = 151,353,600.29
  5. Step 5: Solve for x
    x = 151,353,600.29/14,078.14
  6. Step 6: Final answer
    x = 10,750.97

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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.