Home / 13,759.34-20,619.56-6,838.70

Finding the Fourth Proportional to 13,759.34, 20,619.56 and 6,838.70

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Solution

The fourth proportional to 13,759.34, 20,619.56 and 6,838.70 is: 10,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.34 : 20,619.56 = 6,838.70 : x
  2. Step 2: Convert to fraction form
    13,759.34/20,619.56 = 6,838.70/x
  3. Step 3: Cross multiply
    13,759.34x = 20,619.56 × 6,838.70
  4. Step 4: Simplify right side
    13,759.34x = 141,010,984.97
  5. Step 5: Solve for x
    x = 141,010,984.97/13,759.34
  6. Step 6: Final answer
    x = 10,248.38

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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.