Home / 12,356.80-18,538.55-4,035.72

Finding the Fourth Proportional to 12,356.80, 18,538.55 and 4,035.72

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Solution

The fourth proportional to 12,356.80, 18,538.55 and 4,035.72 is: 6,054.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.80 : 18,538.55 = 4,035.72 : x
  2. Step 2: Convert to fraction form
    12,356.80/18,538.55 = 4,035.72/x
  3. Step 3: Cross multiply
    12,356.80x = 18,538.55 × 4,035.72
  4. Step 4: Simplify right side
    12,356.80x = 74,816,450.13
  5. Step 5: Solve for x
    x = 74,816,450.13/12,356.80
  6. Step 6: Final answer
    x = 6,054.68

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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.