Home / 12,277.53-18,390.42-5,619.65

Finding the Fourth Proportional to 12,277.53, 18,390.42 and 5,619.65

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Solution

The fourth proportional to 12,277.53, 18,390.42 and 5,619.65 is: 8,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.53 : 18,390.42 = 5,619.65 : x
  2. Step 2: Convert to fraction form
    12,277.53/18,390.42 = 5,619.65/x
  3. Step 3: Cross multiply
    12,277.53x = 18,390.42 × 5,619.65
  4. Step 4: Simplify right side
    12,277.53x = 103,347,631.80
  5. Step 5: Solve for x
    x = 103,347,631.80/12,277.53
  6. Step 6: Final answer
    x = 8,417.62

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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.