Home / 9,591.12-13,222.20-9,459.60

Finding the Fourth Proportional to 9,591.12, 13,222.20 and 9,459.60

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Solution

The fourth proportional to 9,591.12, 13,222.20 and 9,459.60 is: 13,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.12 : 13,222.20 = 9,459.60 : x
  2. Step 2: Convert to fraction form
    9,591.12/13,222.20 = 9,459.60/x
  3. Step 3: Cross multiply
    9,591.12x = 13,222.20 × 9,459.60
  4. Step 4: Simplify right side
    9,591.12x = 125,076,723.12
  5. Step 5: Solve for x
    x = 125,076,723.12/9,591.12
  6. Step 6: Final answer
    x = 13,040.89

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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.