Home / 13,924.38-19,215.64-7,636.75

Finding the Fourth Proportional to 13,924.38, 19,215.64 and 7,636.75

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Solution

The fourth proportional to 13,924.38, 19,215.64 and 7,636.75 is: 10,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.38 : 19,215.64 = 7,636.75 : x
  2. Step 2: Convert to fraction form
    13,924.38/19,215.64 = 7,636.75/x
  3. Step 3: Cross multiply
    13,924.38x = 19,215.64 × 7,636.75
  4. Step 4: Simplify right side
    13,924.38x = 146,745,038.77
  5. Step 5: Solve for x
    x = 146,745,038.77/13,924.38
  6. Step 6: Final answer
    x = 10,538.71

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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.