Home / 8,636.09-11,917.55-4,859.47

Finding the Fourth Proportional to 8,636.09, 11,917.55 and 4,859.47

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Solution

The fourth proportional to 8,636.09, 11,917.55 and 4,859.47 is: 6,705.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.09 : 11,917.55 = 4,859.47 : x
  2. Step 2: Convert to fraction form
    8,636.09/11,917.55 = 4,859.47/x
  3. Step 3: Cross multiply
    8,636.09x = 11,917.55 × 4,859.47
  4. Step 4: Simplify right side
    8,636.09x = 57,912,892.81
  5. Step 5: Solve for x
    x = 57,912,892.81/8,636.09
  6. Step 6: Final answer
    x = 6,705.92

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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.