Home / 14,358.20-21,488.70-12,608.60

Finding the Fourth Proportional to 14,358.20, 21,488.70 and 12,608.60

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Solution

The fourth proportional to 14,358.20, 21,488.70 and 12,608.60 is: 18,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.20 : 21,488.70 = 12,608.60 : x
  2. Step 2: Convert to fraction form
    14,358.20/21,488.70 = 12,608.60/x
  3. Step 3: Cross multiply
    14,358.20x = 21,488.70 × 12,608.60
  4. Step 4: Simplify right side
    14,358.20x = 270,942,422.82
  5. Step 5: Solve for x
    x = 270,942,422.82/14,358.20
  6. Step 6: Final answer
    x = 18,870.22

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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.