Home / 13,551.28-18,698.52-7,963.36

Finding the Fourth Proportional to 13,551.28, 18,698.52 and 7,963.36

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Solution

The fourth proportional to 13,551.28, 18,698.52 and 7,963.36 is: 10,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.28 : 18,698.52 = 7,963.36 : x
  2. Step 2: Convert to fraction form
    13,551.28/18,698.52 = 7,963.36/x
  3. Step 3: Cross multiply
    13,551.28x = 18,698.52 × 7,963.36
  4. Step 4: Simplify right side
    13,551.28x = 148,903,046.23
  5. Step 5: Solve for x
    x = 148,903,046.23/13,551.28
  6. Step 6: Final answer
    x = 10,988.12

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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.