Home / 13,291.84-18,209.91-12,793.60

Finding the Fourth Proportional to 13,291.84, 18,209.91 and 12,793.60

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Solution

The fourth proportional to 13,291.84, 18,209.91 and 12,793.60 is: 17,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.84 : 18,209.91 = 12,793.60 : x
  2. Step 2: Convert to fraction form
    13,291.84/18,209.91 = 12,793.60/x
  3. Step 3: Cross multiply
    13,291.84x = 18,209.91 × 12,793.60
  4. Step 4: Simplify right side
    13,291.84x = 232,970,304.58
  5. Step 5: Solve for x
    x = 232,970,304.58/13,291.84
  6. Step 6: Final answer
    x = 17,527.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.