Home / 18,460.31-27,687.35-5,309.63

Finding the Fourth Proportional to 18,460.31, 27,687.35 and 5,309.63

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Solution

The fourth proportional to 18,460.31, 27,687.35 and 5,309.63 is: 7,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.31 : 27,687.35 = 5,309.63 : x
  2. Step 2: Convert to fraction form
    18,460.31/27,687.35 = 5,309.63/x
  3. Step 3: Cross multiply
    18,460.31x = 27,687.35 × 5,309.63
  4. Step 4: Simplify right side
    18,460.31x = 147,009,584.18
  5. Step 5: Solve for x
    x = 147,009,584.18/18,460.31
  6. Step 6: Final answer
    x = 7,963.55

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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.