Home / 9,390.73-12,958.65-5,140.95

Finding the Fourth Proportional to 9,390.73, 12,958.65 and 5,140.95

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Solution

The fourth proportional to 9,390.73, 12,958.65 and 5,140.95 is: 7,094.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.73 : 12,958.65 = 5,140.95 : x
  2. Step 2: Convert to fraction form
    9,390.73/12,958.65 = 5,140.95/x
  3. Step 3: Cross multiply
    9,390.73x = 12,958.65 × 5,140.95
  4. Step 4: Simplify right side
    9,390.73x = 66,619,771.72
  5. Step 5: Solve for x
    x = 66,619,771.72/9,390.73
  6. Step 6: Final answer
    x = 7,094.21

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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.