Home / 18,521.58-25,558.80-10,136.46

Finding the Fourth Proportional to 18,521.58, 25,558.80 and 10,136.46

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Solution

The fourth proportional to 18,521.58, 25,558.80 and 10,136.46 is: 13,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.58 : 25,558.80 = 10,136.46 : x
  2. Step 2: Convert to fraction form
    18,521.58/25,558.80 = 10,136.46/x
  3. Step 3: Cross multiply
    18,521.58x = 25,558.80 × 10,136.46
  4. Step 4: Simplify right side
    18,521.58x = 259,075,753.85
  5. Step 5: Solve for x
    x = 259,075,753.85/18,521.58
  6. Step 6: Final answer
    x = 13,987.78

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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.