Home / 8,476.54-11,686.14-7,147.94

Finding the Fourth Proportional to 8,476.54, 11,686.14 and 7,147.94

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Solution

The fourth proportional to 8,476.54, 11,686.14 and 7,147.94 is: 9,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.54 : 11,686.14 = 7,147.94 : x
  2. Step 2: Convert to fraction form
    8,476.54/11,686.14 = 7,147.94/x
  3. Step 3: Cross multiply
    8,476.54x = 11,686.14 × 7,147.94
  4. Step 4: Simplify right side
    8,476.54x = 83,531,769.12
  5. Step 5: Solve for x
    x = 83,531,769.12/8,476.54
  6. Step 6: Final answer
    x = 9,854.47

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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.