Home / 9,394.13-12,963.90-5,145.20

Finding the Fourth Proportional to 9,394.13, 12,963.90 and 5,145.20

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Solution

The fourth proportional to 9,394.13, 12,963.90 and 5,145.20 is: 7,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.13 : 12,963.90 = 5,145.20 : x
  2. Step 2: Convert to fraction form
    9,394.13/12,963.90 = 5,145.20/x
  3. Step 3: Cross multiply
    9,394.13x = 12,963.90 × 5,145.20
  4. Step 4: Simplify right side
    9,394.13x = 66,701,858.28
  5. Step 5: Solve for x
    x = 66,701,858.28/9,394.13
  6. Step 6: Final answer
    x = 7,100.38

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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.