Home / 13,045.25-18,002.31-7,076.79

Finding the Fourth Proportional to 13,045.25, 18,002.31 and 7,076.79

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Solution

The fourth proportional to 13,045.25, 18,002.31 and 7,076.79 is: 9,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.25 : 18,002.31 = 7,076.79 : x
  2. Step 2: Convert to fraction form
    13,045.25/18,002.31 = 7,076.79/x
  3. Step 3: Cross multiply
    13,045.25x = 18,002.31 × 7,076.79
  4. Step 4: Simplify right side
    13,045.25x = 127,398,567.38
  5. Step 5: Solve for x
    x = 127,398,567.38/13,045.25
  6. Step 6: Final answer
    x = 9,765.90

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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.