Home / 13,359.24-18,435.93-8,325.49

Finding the Fourth Proportional to 13,359.24, 18,435.93 and 8,325.49

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Solution

The fourth proportional to 13,359.24, 18,435.93 and 8,325.49 is: 11,489.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.24 : 18,435.93 = 8,325.49 : x
  2. Step 2: Convert to fraction form
    13,359.24/18,435.93 = 8,325.49/x
  3. Step 3: Cross multiply
    13,359.24x = 18,435.93 × 8,325.49
  4. Step 4: Simplify right side
    13,359.24x = 153,488,150.86
  5. Step 5: Solve for x
    x = 153,488,150.86/13,359.24
  6. Step 6: Final answer
    x = 11,489.29

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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.