Home / 11,911.42-17,865.86-4,892.16

Finding the Fourth Proportional to 11,911.42, 17,865.86 and 4,892.16

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Solution

The fourth proportional to 11,911.42, 17,865.86 and 4,892.16 is: 7,337.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.42 : 17,865.86 = 4,892.16 : x
  2. Step 2: Convert to fraction form
    11,911.42/17,865.86 = 4,892.16/x
  3. Step 3: Cross multiply
    11,911.42x = 17,865.86 × 4,892.16
  4. Step 4: Simplify right side
    11,911.42x = 87,402,645.66
  5. Step 5: Solve for x
    x = 87,402,645.66/11,911.42
  6. Step 6: Final answer
    x = 7,337.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.