Home / 9,645.40-13,310.58-5,453.80

Finding the Fourth Proportional to 9,645.40, 13,310.58 and 5,453.80

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Solution

The fourth proportional to 9,645.40, 13,310.58 and 5,453.80 is: 7,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,645.40 : 13,310.58 = 5,453.80 : x
  2. Step 2: Convert to fraction form
    9,645.40/13,310.58 = 5,453.80/x
  3. Step 3: Cross multiply
    9,645.40x = 13,310.58 × 5,453.80
  4. Step 4: Simplify right side
    9,645.40x = 72,593,241.20
  5. Step 5: Solve for x
    x = 72,593,241.20/9,645.40
  6. Step 6: Final answer
    x = 7,526.20

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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.