Home / 9,879.21-13,633.18-5,630.53

Finding the Fourth Proportional to 9,879.21, 13,633.18 and 5,630.53

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Solution

The fourth proportional to 9,879.21, 13,633.18 and 5,630.53 is: 7,770.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.21 : 13,633.18 = 5,630.53 : x
  2. Step 2: Convert to fraction form
    9,879.21/13,633.18 = 5,630.53/x
  3. Step 3: Cross multiply
    9,879.21x = 13,633.18 × 5,630.53
  4. Step 4: Simplify right side
    9,879.21x = 76,762,028.99
  5. Step 5: Solve for x
    x = 76,762,028.99/9,879.21
  6. Step 6: Final answer
    x = 7,770.06

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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.