Home / 13,525.79-18,644.60-13,263.35

Finding the Fourth Proportional to 13,525.79, 18,644.60 and 13,263.35

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Solution

The fourth proportional to 13,525.79, 18,644.60 and 13,263.35 is: 18,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.79 : 18,644.60 = 13,263.35 : x
  2. Step 2: Convert to fraction form
    13,525.79/18,644.60 = 13,263.35/x
  3. Step 3: Cross multiply
    13,525.79x = 18,644.60 × 13,263.35
  4. Step 4: Simplify right side
    13,525.79x = 247,289,789.09
  5. Step 5: Solve for x
    x = 247,289,789.09/13,525.79
  6. Step 6: Final answer
    x = 18,282.84

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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.