Home / 13,564.54-18,740.46-12,826.36

Finding the Fourth Proportional to 13,564.54, 18,740.46 and 12,826.36

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Solution

The fourth proportional to 13,564.54, 18,740.46 and 12,826.36 is: 17,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.54 : 18,740.46 = 12,826.36 : x
  2. Step 2: Convert to fraction form
    13,564.54/18,740.46 = 12,826.36/x
  3. Step 3: Cross multiply
    13,564.54x = 18,740.46 × 12,826.36
  4. Step 4: Simplify right side
    13,564.54x = 240,371,886.53
  5. Step 5: Solve for x
    x = 240,371,886.53/13,564.54
  6. Step 6: Final answer
    x = 17,720.61

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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.