Home / 17,455.60-26,139.66-13,777.80

Finding the Fourth Proportional to 17,455.60, 26,139.66 and 13,777.80

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Solution

The fourth proportional to 17,455.60, 26,139.66 and 13,777.80 is: 20,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,455.60 : 26,139.66 = 13,777.80 : x
  2. Step 2: Convert to fraction form
    17,455.60/26,139.66 = 13,777.80/x
  3. Step 3: Cross multiply
    17,455.60x = 26,139.66 × 13,777.80
  4. Step 4: Simplify right side
    17,455.60x = 360,147,007.55
  5. Step 5: Solve for x
    x = 360,147,007.55/17,455.60
  6. Step 6: Final answer
    x = 20,632.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.