Home / 18,507.36-25,539.84-10,123.68

Finding the Fourth Proportional to 18,507.36, 25,539.84 and 10,123.68

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Solution

The fourth proportional to 18,507.36, 25,539.84 and 10,123.68 is: 13,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.36 : 25,539.84 = 10,123.68 : x
  2. Step 2: Convert to fraction form
    18,507.36/25,539.84 = 10,123.68/x
  3. Step 3: Cross multiply
    18,507.36x = 25,539.84 × 10,123.68
  4. Step 4: Simplify right side
    18,507.36x = 258,557,167.41
  5. Step 5: Solve for x
    x = 258,557,167.41/18,507.36
  6. Step 6: Final answer
    x = 13,970.51

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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.