Home / 9,090.41-13,610.21-4,915.49

Finding the Fourth Proportional to 9,090.41, 13,610.21 and 4,915.49

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Solution

The fourth proportional to 9,090.41, 13,610.21 and 4,915.49 is: 7,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.41 : 13,610.21 = 4,915.49 : x
  2. Step 2: Convert to fraction form
    9,090.41/13,610.21 = 4,915.49/x
  3. Step 3: Cross multiply
    9,090.41x = 13,610.21 × 4,915.49
  4. Step 4: Simplify right side
    9,090.41x = 66,900,758.52
  5. Step 5: Solve for x
    x = 66,900,758.52/9,090.41
  6. Step 6: Final answer
    x = 7,359.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.