Home / 18,387.09-25,374.32-10,003.59

Finding the Fourth Proportional to 18,387.09, 25,374.32 and 10,003.59

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Solution

The fourth proportional to 18,387.09, 25,374.32 and 10,003.59 is: 13,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.09 : 25,374.32 = 10,003.59 : x
  2. Step 2: Convert to fraction form
    18,387.09/25,374.32 = 10,003.59/x
  3. Step 3: Cross multiply
    18,387.09x = 25,374.32 × 10,003.59
  4. Step 4: Simplify right side
    18,387.09x = 253,834,243.79
  5. Step 5: Solve for x
    x = 253,834,243.79/18,387.09
  6. Step 6: Final answer
    x = 13,805.03

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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.