Home / 12,924.45-19,390.47-4,159.14

Finding the Fourth Proportional to 12,924.45, 19,390.47 and 4,159.14

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Solution

The fourth proportional to 12,924.45, 19,390.47 and 4,159.14 is: 6,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.45 : 19,390.47 = 4,159.14 : x
  2. Step 2: Convert to fraction form
    12,924.45/19,390.47 = 4,159.14/x
  3. Step 3: Cross multiply
    12,924.45x = 19,390.47 × 4,159.14
  4. Step 4: Simplify right side
    12,924.45x = 80,647,679.40
  5. Step 5: Solve for x
    x = 80,647,679.40/12,924.45
  6. Step 6: Final answer
    x = 6,239.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.