Home / 9,391.13-12,958.47-5,613.48

Finding the Fourth Proportional to 9,391.13, 12,958.47 and 5,613.48

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Solution

The fourth proportional to 9,391.13, 12,958.47 and 5,613.48 is: 7,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.13 : 12,958.47 = 5,613.48 : x
  2. Step 2: Convert to fraction form
    9,391.13/12,958.47 = 5,613.48/x
  3. Step 3: Cross multiply
    9,391.13x = 12,958.47 × 5,613.48
  4. Step 4: Simplify right side
    9,391.13x = 72,742,112.18
  5. Step 5: Solve for x
    x = 72,742,112.18/9,391.13
  6. Step 6: Final answer
    x = 7,745.84

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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.