Home / 11,469.92-15,831.60-9,396.32

Finding the Fourth Proportional to 11,469.92, 15,831.60 and 9,396.32

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Solution

The fourth proportional to 11,469.92, 15,831.60 and 9,396.32 is: 12,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.92 : 15,831.60 = 9,396.32 : x
  2. Step 2: Convert to fraction form
    11,469.92/15,831.60 = 9,396.32/x
  3. Step 3: Cross multiply
    11,469.92x = 15,831.60 × 9,396.32
  4. Step 4: Simplify right side
    11,469.92x = 148,758,779.71
  5. Step 5: Solve for x
    x = 148,758,779.71/11,469.92
  6. Step 6: Final answer
    x = 12,969.47

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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.