Home / 18,150.02-25,051.11-11,858.78

Finding the Fourth Proportional to 18,150.02, 25,051.11 and 11,858.78

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Solution

The fourth proportional to 18,150.02, 25,051.11 and 11,858.78 is: 16,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.02 : 25,051.11 = 11,858.78 : x
  2. Step 2: Convert to fraction form
    18,150.02/25,051.11 = 11,858.78/x
  3. Step 3: Cross multiply
    18,150.02x = 25,051.11 × 11,858.78
  4. Step 4: Simplify right side
    18,150.02x = 297,075,602.25
  5. Step 5: Solve for x
    x = 297,075,602.25/18,150.02
  6. Step 6: Final answer
    x = 16,367.78

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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.