Home / 13,270.67-18,314.02-7,302.79

Finding the Fourth Proportional to 13,270.67, 18,314.02 and 7,302.79

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Solution

The fourth proportional to 13,270.67, 18,314.02 and 7,302.79 is: 10,078.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.67 : 18,314.02 = 7,302.79 : x
  2. Step 2: Convert to fraction form
    13,270.67/18,314.02 = 7,302.79/x
  3. Step 3: Cross multiply
    13,270.67x = 18,314.02 × 7,302.79
  4. Step 4: Simplify right side
    13,270.67x = 133,743,442.12
  5. Step 5: Solve for x
    x = 133,743,442.12/13,270.67
  6. Step 6: Final answer
    x = 10,078.12

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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.