Home / 9,435.12-13,020.90-5,243.38

Finding the Fourth Proportional to 9,435.12, 13,020.90 and 5,243.38

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Solution

The fourth proportional to 9,435.12, 13,020.90 and 5,243.38 is: 7,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.12 : 13,020.90 = 5,243.38 : x
  2. Step 2: Convert to fraction form
    9,435.12/13,020.90 = 5,243.38/x
  3. Step 3: Cross multiply
    9,435.12x = 13,020.90 × 5,243.38
  4. Step 4: Simplify right side
    9,435.12x = 68,273,526.64
  5. Step 5: Solve for x
    x = 68,273,526.64/9,435.12
  6. Step 6: Final answer
    x = 7,236.11

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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.