Home / 9,699.21-13,385.91-5,450.66

Finding the Fourth Proportional to 9,699.21, 13,385.91 and 5,450.66

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Solution

The fourth proportional to 9,699.21, 13,385.91 and 5,450.66 is: 7,522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.21 : 13,385.91 = 5,450.66 : x
  2. Step 2: Convert to fraction form
    9,699.21/13,385.91 = 5,450.66/x
  3. Step 3: Cross multiply
    9,699.21x = 13,385.91 × 5,450.66
  4. Step 4: Simplify right side
    9,699.21x = 72,962,047.91
  5. Step 5: Solve for x
    x = 72,962,047.91/9,699.21
  6. Step 6: Final answer
    x = 7,522.47

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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.