Home / 13,304.80-18,368.64-11,828.80

Finding the Fourth Proportional to 13,304.80, 18,368.64 and 11,828.80

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Solution

The fourth proportional to 13,304.80, 18,368.64 and 11,828.80 is: 16,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.80 : 18,368.64 = 11,828.80 : x
  2. Step 2: Convert to fraction form
    13,304.80/18,368.64 = 11,828.80/x
  3. Step 3: Cross multiply
    13,304.80x = 18,368.64 × 11,828.80
  4. Step 4: Simplify right side
    13,304.80x = 217,278,968.83
  5. Step 5: Solve for x
    x = 217,278,968.83/13,304.80
  6. Step 6: Final answer
    x = 16,330.87

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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.