Home / 8,786.71-13,185.47-7,966.45

Finding the Fourth Proportional to 8,786.71, 13,185.47 and 7,966.45

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Solution

The fourth proportional to 8,786.71, 13,185.47 and 7,966.45 is: 11,954.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.71 : 13,185.47 = 7,966.45 : x
  2. Step 2: Convert to fraction form
    8,786.71/13,185.47 = 7,966.45/x
  3. Step 3: Cross multiply
    8,786.71x = 13,185.47 × 7,966.45
  4. Step 4: Simplify right side
    8,786.71x = 105,041,387.48
  5. Step 5: Solve for x
    x = 105,041,387.48/8,786.71
  6. Step 6: Final answer
    x = 11,954.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.