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Finding the Fourth Proportional to 18,419.58, 25,419.03 and 10,036.08

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Solution

The fourth proportional to 18,419.58, 25,419.03 and 10,036.08 is: 13,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.58 : 25,419.03 = 10,036.08 : x
  2. Step 2: Convert to fraction form
    18,419.58/25,419.03 = 10,036.08/x
  3. Step 3: Cross multiply
    18,419.58x = 25,419.03 × 10,036.08
  4. Step 4: Simplify right side
    18,419.58x = 255,107,418.60
  5. Step 5: Solve for x
    x = 255,107,418.60/18,419.58
  6. Step 6: Final answer
    x = 13,849.80

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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.