Home / 9,270.30-12,791.78-5,291.17

Finding the Fourth Proportional to 9,270.30, 12,791.78 and 5,291.17

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Solution

The fourth proportional to 9,270.30, 12,791.78 and 5,291.17 is: 7,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.30 : 12,791.78 = 5,291.17 : x
  2. Step 2: Convert to fraction form
    9,270.30/12,791.78 = 5,291.17/x
  3. Step 3: Cross multiply
    9,270.30x = 12,791.78 × 5,291.17
  4. Step 4: Simplify right side
    9,270.30x = 67,683,527.79
  5. Step 5: Solve for x
    x = 67,683,527.79/9,270.30
  6. Step 6: Final answer
    x = 7,301.12

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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.