Home / 13,324.40-19,986.60-9,387.80

Finding the Fourth Proportional to 13,324.40, 19,986.60 and 9,387.80

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Solution

The fourth proportional to 13,324.40, 19,986.60 and 9,387.80 is: 14,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.40 : 19,986.60 = 9,387.80 : x
  2. Step 2: Convert to fraction form
    13,324.40/19,986.60 = 9,387.80/x
  3. Step 3: Cross multiply
    13,324.40x = 19,986.60 × 9,387.80
  4. Step 4: Simplify right side
    13,324.40x = 187,630,203.48
  5. Step 5: Solve for x
    x = 187,630,203.48/13,324.40
  6. Step 6: Final answer
    x = 14,081.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.