Home / 13,283.52-19,920.60-3,921.06

Finding the Fourth Proportional to 13,283.52, 19,920.60 and 3,921.06

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Solution

The fourth proportional to 13,283.52, 19,920.60 and 3,921.06 is: 5,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.52 : 19,920.60 = 3,921.06 : x
  2. Step 2: Convert to fraction form
    13,283.52/19,920.60 = 3,921.06/x
  3. Step 3: Cross multiply
    13,283.52x = 19,920.60 × 3,921.06
  4. Step 4: Simplify right side
    13,283.52x = 78,109,867.84
  5. Step 5: Solve for x
    x = 78,109,867.84/13,283.52
  6. Step 6: Final answer
    x = 5,880.21

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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.