Home / 13,266.79-18,303.46-8,225.80

Finding the Fourth Proportional to 13,266.79, 18,303.46 and 8,225.80

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Solution

The fourth proportional to 13,266.79, 18,303.46 and 8,225.80 is: 11,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.79 : 18,303.46 = 8,225.80 : x
  2. Step 2: Convert to fraction form
    13,266.79/18,303.46 = 8,225.80/x
  3. Step 3: Cross multiply
    13,266.79x = 18,303.46 × 8,225.80
  4. Step 4: Simplify right side
    13,266.79x = 150,560,601.27
  5. Step 5: Solve for x
    x = 150,560,601.27/13,266.79
  6. Step 6: Final answer
    x = 11,348.68

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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.