Home / 18,339.78-25,308.55-10,786.94

Finding the Fourth Proportional to 18,339.78, 25,308.55 and 10,786.94

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Solution

The fourth proportional to 18,339.78, 25,308.55 and 10,786.94 is: 14,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.78 : 25,308.55 = 10,786.94 : x
  2. Step 2: Convert to fraction form
    18,339.78/25,308.55 = 10,786.94/x
  3. Step 3: Cross multiply
    18,339.78x = 25,308.55 × 10,786.94
  4. Step 4: Simplify right side
    18,339.78x = 273,001,810.34
  5. Step 5: Solve for x
    x = 273,001,810.34/18,339.78
  6. Step 6: Final answer
    x = 14,885.77

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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.