Home / 9,879.53-13,634.68-5,630.81

Finding the Fourth Proportional to 9,879.53, 13,634.68 and 5,630.81

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Solution

The fourth proportional to 9,879.53, 13,634.68 and 5,630.81 is: 7,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.53 : 13,634.68 = 5,630.81 : x
  2. Step 2: Convert to fraction form
    9,879.53/13,634.68 = 5,630.81/x
  3. Step 3: Cross multiply
    9,879.53x = 13,634.68 × 5,630.81
  4. Step 4: Simplify right side
    9,879.53x = 76,774,292.49
  5. Step 5: Solve for x
    x = 76,774,292.49/9,879.53
  6. Step 6: Final answer
    x = 7,771.05

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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.