Home / 12,963.24-17,889.66-7,928.28

Finding the Fourth Proportional to 12,963.24, 17,889.66 and 7,928.28

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Solution

The fourth proportional to 12,963.24, 17,889.66 and 7,928.28 is: 10,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.24 : 17,889.66 = 7,928.28 : x
  2. Step 2: Convert to fraction form
    12,963.24/17,889.66 = 7,928.28/x
  3. Step 3: Cross multiply
    12,963.24x = 17,889.66 × 7,928.28
  4. Step 4: Simplify right side
    12,963.24x = 141,834,233.58
  5. Step 5: Solve for x
    x = 141,834,233.58/12,963.24
  6. Step 6: Final answer
    x = 10,941.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.