Home / 13,417.18-18,517.83-12,826.54

Finding the Fourth Proportional to 13,417.18, 18,517.83 and 12,826.54

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Solution

The fourth proportional to 13,417.18, 18,517.83 and 12,826.54 is: 17,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.18 : 18,517.83 = 12,826.54 : x
  2. Step 2: Convert to fraction form
    13,417.18/18,517.83 = 12,826.54/x
  3. Step 3: Cross multiply
    13,417.18x = 18,517.83 × 12,826.54
  4. Step 4: Simplify right side
    13,417.18x = 237,519,687.21
  5. Step 5: Solve for x
    x = 237,519,687.21/13,417.18
  6. Step 6: Final answer
    x = 17,702.65

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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.