Home / 18,557.98-25,611.06-11,008.78

Finding the Fourth Proportional to 18,557.98, 25,611.06 and 11,008.78

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Solution

The fourth proportional to 18,557.98, 25,611.06 and 11,008.78 is: 15,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.98 : 25,611.06 = 11,008.78 : x
  2. Step 2: Convert to fraction form
    18,557.98/25,611.06 = 11,008.78/x
  3. Step 3: Cross multiply
    18,557.98x = 25,611.06 × 11,008.78
  4. Step 4: Simplify right side
    18,557.98x = 281,946,525.11
  5. Step 5: Solve for x
    x = 281,946,525.11/18,557.98
  6. Step 6: Final answer
    x = 15,192.74

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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.