Home / 11,931.86-16,465.68-6,626.54

Finding the Fourth Proportional to 11,931.86, 16,465.68 and 6,626.54

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Solution

The fourth proportional to 11,931.86, 16,465.68 and 6,626.54 is: 9,144.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.86 : 16,465.68 = 6,626.54 : x
  2. Step 2: Convert to fraction form
    11,931.86/16,465.68 = 6,626.54/x
  3. Step 3: Cross multiply
    11,931.86x = 16,465.68 × 6,626.54
  4. Step 4: Simplify right side
    11,931.86x = 109,110,487.15
  5. Step 5: Solve for x
    x = 109,110,487.15/11,931.86
  6. Step 6: Final answer
    x = 9,144.47

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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.