Home / 12,858.43-19,281.97-4,536

Finding the Fourth Proportional to 12,858.43, 19,281.97 and 4,536

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Solution

The fourth proportional to 12,858.43, 19,281.97 and 4,536 is: 6,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.43 : 19,281.97 = 4,536 : x
  2. Step 2: Convert to fraction form
    12,858.43/19,281.97 = 4,536/x
  3. Step 3: Cross multiply
    12,858.43x = 19,281.97 × 4,536
  4. Step 4: Simplify right side
    12,858.43x = 87,463,015.92
  5. Step 5: Solve for x
    x = 87,463,015.92/12,858.43
  6. Step 6: Final answer
    x = 6,802.00

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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.