Home / 13,965.28-20,955.06-9,288.49

Finding the Fourth Proportional to 13,965.28, 20,955.06 and 9,288.49

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Solution

The fourth proportional to 13,965.28, 20,955.06 and 9,288.49 is: 13,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.28 : 20,955.06 = 9,288.49 : x
  2. Step 2: Convert to fraction form
    13,965.28/20,955.06 = 9,288.49/x
  3. Step 3: Cross multiply
    13,965.28x = 20,955.06 × 9,288.49
  4. Step 4: Simplify right side
    13,965.28x = 194,640,865.26
  5. Step 5: Solve for x
    x = 194,640,865.26/13,965.28
  6. Step 6: Final answer
    x = 13,937.48

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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.