Home / 11,325.90-15,628.62-6,289.86

Finding the Fourth Proportional to 11,325.90, 15,628.62 and 6,289.86

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Solution

The fourth proportional to 11,325.90, 15,628.62 and 6,289.86 is: 8,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.90 : 15,628.62 = 6,289.86 : x
  2. Step 2: Convert to fraction form
    11,325.90/15,628.62 = 6,289.86/x
  3. Step 3: Cross multiply
    11,325.90x = 15,628.62 × 6,289.86
  4. Step 4: Simplify right side
    11,325.90x = 98,301,831.79
  5. Step 5: Solve for x
    x = 98,301,831.79/11,325.90
  6. Step 6: Final answer
    x = 8,679.38

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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.