Home / 12,290.74-18,436.21-3,525.93

Finding the Fourth Proportional to 12,290.74, 18,436.21 and 3,525.93

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Solution

The fourth proportional to 12,290.74, 18,436.21 and 3,525.93 is: 5,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.74 : 18,436.21 = 3,525.93 : x
  2. Step 2: Convert to fraction form
    12,290.74/18,436.21 = 3,525.93/x
  3. Step 3: Cross multiply
    12,290.74x = 18,436.21 × 3,525.93
  4. Step 4: Simplify right side
    12,290.74x = 65,004,777.11
  5. Step 5: Solve for x
    x = 65,004,777.11/12,290.74
  6. Step 6: Final answer
    x = 5,288.92

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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.