Home / 13,326.51-18,392.03-9,963.56

Finding the Fourth Proportional to 13,326.51, 18,392.03 and 9,963.56

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Solution

The fourth proportional to 13,326.51, 18,392.03 and 9,963.56 is: 13,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.51 : 18,392.03 = 9,963.56 : x
  2. Step 2: Convert to fraction form
    13,326.51/18,392.03 = 9,963.56/x
  3. Step 3: Cross multiply
    13,326.51x = 18,392.03 × 9,963.56
  4. Step 4: Simplify right side
    13,326.51x = 183,249,952.65
  5. Step 5: Solve for x
    x = 183,249,952.65/13,326.51
  6. Step 6: Final answer
    x = 13,750.78

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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.