Home / 13,924.50-19,215.81-7,636.89

Finding the Fourth Proportional to 13,924.50, 19,215.81 and 7,636.89

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Solution

The fourth proportional to 13,924.50, 19,215.81 and 7,636.89 is: 10,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.50 : 19,215.81 = 7,636.89 : x
  2. Step 2: Convert to fraction form
    13,924.50/19,215.81 = 7,636.89/x
  3. Step 3: Cross multiply
    13,924.50x = 19,215.81 × 7,636.89
  4. Step 4: Simplify right side
    13,924.50x = 146,749,027.23
  5. Step 5: Solve for x
    x = 146,749,027.23/13,924.50
  6. Step 6: Final answer
    x = 10,538.91

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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.