Home / 9,390.38-12,958.90-5,141.45

Finding the Fourth Proportional to 9,390.38, 12,958.90 and 5,141.45

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Solution

The fourth proportional to 9,390.38, 12,958.90 and 5,141.45 is: 7,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.38 : 12,958.90 = 5,141.45 : x
  2. Step 2: Convert to fraction form
    9,390.38/12,958.90 = 5,141.45/x
  3. Step 3: Cross multiply
    9,390.38x = 12,958.90 × 5,141.45
  4. Step 4: Simplify right side
    9,390.38x = 66,627,555.95
  5. Step 5: Solve for x
    x = 66,627,555.95/9,390.38
  6. Step 6: Final answer
    x = 7,095.30

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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.