Home / 8,647.81-11,934.87-5,292.85

Finding the Fourth Proportional to 8,647.81, 11,934.87 and 5,292.85

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Solution

The fourth proportional to 8,647.81, 11,934.87 and 5,292.85 is: 7,304.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.81 : 11,934.87 = 5,292.85 : x
  2. Step 2: Convert to fraction form
    8,647.81/11,934.87 = 5,292.85/x
  3. Step 3: Cross multiply
    8,647.81x = 11,934.87 × 5,292.85
  4. Step 4: Simplify right side
    8,647.81x = 63,169,476.68
  5. Step 5: Solve for x
    x = 63,169,476.68/8,647.81
  6. Step 6: Final answer
    x = 7,304.68

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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.