Home / 12,225.80-18,338.07-3,460.74

Finding the Fourth Proportional to 12,225.80, 18,338.07 and 3,460.74

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Solution

The fourth proportional to 12,225.80, 18,338.07 and 3,460.74 is: 5,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.80 : 18,338.07 = 3,460.74 : x
  2. Step 2: Convert to fraction form
    12,225.80/18,338.07 = 3,460.74/x
  3. Step 3: Cross multiply
    12,225.80x = 18,338.07 × 3,460.74
  4. Step 4: Simplify right side
    12,225.80x = 63,463,330.00
  5. Step 5: Solve for x
    x = 63,463,330.00/12,225.80
  6. Step 6: Final answer
    x = 5,190.93

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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.