Home / 13,266.26-18,303.81-8,228.06

Finding the Fourth Proportional to 13,266.26, 18,303.81 and 8,228.06

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Solution

The fourth proportional to 13,266.26, 18,303.81 and 8,228.06 is: 11,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.26 : 18,303.81 = 8,228.06 : x
  2. Step 2: Convert to fraction form
    13,266.26/18,303.81 = 8,228.06/x
  3. Step 3: Cross multiply
    13,266.26x = 18,303.81 × 8,228.06
  4. Step 4: Simplify right side
    13,266.26x = 150,604,846.91
  5. Step 5: Solve for x
    x = 150,604,846.91/13,266.26
  6. Step 6: Final answer
    x = 11,352.47

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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.