Home / 9,013.28-13,520.12-3,090.11

Finding the Fourth Proportional to 9,013.28, 13,520.12 and 3,090.11

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Solution

The fourth proportional to 9,013.28, 13,520.12 and 3,090.11 is: 4,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.28 : 13,520.12 = 3,090.11 : x
  2. Step 2: Convert to fraction form
    9,013.28/13,520.12 = 3,090.11/x
  3. Step 3: Cross multiply
    9,013.28x = 13,520.12 × 3,090.11
  4. Step 4: Simplify right side
    9,013.28x = 41,778,699.54
  5. Step 5: Solve for x
    x = 41,778,699.54/9,013.28
  6. Step 6: Final answer
    x = 4,635.24

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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.