Home / 18,219.07-25,141.80-10,261.36

Finding the Fourth Proportional to 18,219.07, 25,141.80 and 10,261.36

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Solution

The fourth proportional to 18,219.07, 25,141.80 and 10,261.36 is: 14,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.07 : 25,141.80 = 10,261.36 : x
  2. Step 2: Convert to fraction form
    18,219.07/25,141.80 = 10,261.36/x
  3. Step 3: Cross multiply
    18,219.07x = 25,141.80 × 10,261.36
  4. Step 4: Simplify right side
    18,219.07x = 257,989,060.85
  5. Step 5: Solve for x
    x = 257,989,060.85/18,219.07
  6. Step 6: Final answer
    x = 14,160.39

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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.