Home / 13,315.25-19,948.28-6,725.70

Finding the Fourth Proportional to 13,315.25, 19,948.28 and 6,725.70

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Solution

The fourth proportional to 13,315.25, 19,948.28 and 6,725.70 is: 10,076.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.25 : 19,948.28 = 6,725.70 : x
  2. Step 2: Convert to fraction form
    13,315.25/19,948.28 = 6,725.70/x
  3. Step 3: Cross multiply
    13,315.25x = 19,948.28 × 6,725.70
  4. Step 4: Simplify right side
    13,315.25x = 134,166,113.17
  5. Step 5: Solve for x
    x = 134,166,113.17/13,315.25
  6. Step 6: Final answer
    x = 10,076.12

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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.