Home / 13,283.12-19,921.95-4,961.60

Finding the Fourth Proportional to 13,283.12, 19,921.95 and 4,961.60

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Solution

The fourth proportional to 13,283.12, 19,921.95 and 4,961.60 is: 7,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.12 : 19,921.95 = 4,961.60 : x
  2. Step 2: Convert to fraction form
    13,283.12/19,921.95 = 4,961.60/x
  3. Step 3: Cross multiply
    13,283.12x = 19,921.95 × 4,961.60
  4. Step 4: Simplify right side
    13,283.12x = 98,844,747.12
  5. Step 5: Solve for x
    x = 98,844,747.12/13,283.12
  6. Step 6: Final answer
    x = 7,441.38

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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.