Home / 18,735.92-25,855.44-10,779.68

Finding the Fourth Proportional to 18,735.92, 25,855.44 and 10,779.68

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Solution

The fourth proportional to 18,735.92, 25,855.44 and 10,779.68 is: 14,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.92 : 25,855.44 = 10,779.68 : x
  2. Step 2: Convert to fraction form
    18,735.92/25,855.44 = 10,779.68/x
  3. Step 3: Cross multiply
    18,735.92x = 25,855.44 × 10,779.68
  4. Step 4: Simplify right side
    18,735.92x = 278,713,369.46
  5. Step 5: Solve for x
    x = 278,713,369.46/18,735.92
  6. Step 6: Final answer
    x = 14,875.88

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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.