Home / 18,507.06-25,540.38-10,123.56

Finding the Fourth Proportional to 18,507.06, 25,540.38 and 10,123.56

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Solution

The fourth proportional to 18,507.06, 25,540.38 and 10,123.56 is: 13,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.06 : 25,540.38 = 10,123.56 : x
  2. Step 2: Convert to fraction form
    18,507.06/25,540.38 = 10,123.56/x
  3. Step 3: Cross multiply
    18,507.06x = 25,540.38 × 10,123.56
  4. Step 4: Simplify right side
    18,507.06x = 258,559,569.35
  5. Step 5: Solve for x
    x = 258,559,569.35/18,507.06
  6. Step 6: Final answer
    x = 13,970.86

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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.