Home / 13,209.53-19,800.50-6,976.58

Finding the Fourth Proportional to 13,209.53, 19,800.50 and 6,976.58

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Solution

The fourth proportional to 13,209.53, 19,800.50 and 6,976.58 is: 10,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.53 : 19,800.50 = 6,976.58 : x
  2. Step 2: Convert to fraction form
    13,209.53/19,800.50 = 6,976.58/x
  3. Step 3: Cross multiply
    13,209.53x = 19,800.50 × 6,976.58
  4. Step 4: Simplify right side
    13,209.53x = 138,139,638.40
  5. Step 5: Solve for x
    x = 138,139,638.40/13,209.53
  6. Step 6: Final answer
    x = 10,457.58

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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.