Home / 18,310.08-25,249.71-13,783.59

Finding the Fourth Proportional to 18,310.08, 25,249.71 and 13,783.59

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Solution

The fourth proportional to 18,310.08, 25,249.71 and 13,783.59 is: 19,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.08 : 25,249.71 = 13,783.59 : x
  2. Step 2: Convert to fraction form
    18,310.08/25,249.71 = 13,783.59/x
  3. Step 3: Cross multiply
    18,310.08x = 25,249.71 × 13,783.59
  4. Step 4: Simplify right side
    18,310.08x = 348,031,581.34
  5. Step 5: Solve for x
    x = 348,031,581.34/18,310.08
  6. Step 6: Final answer
    x = 19,007.65

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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.