Home / 12,270.57-18,407.03-4,477.53

Finding the Fourth Proportional to 12,270.57, 18,407.03 and 4,477.53

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Solution

The fourth proportional to 12,270.57, 18,407.03 and 4,477.53 is: 6,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.57 : 18,407.03 = 4,477.53 : x
  2. Step 2: Convert to fraction form
    12,270.57/18,407.03 = 4,477.53/x
  3. Step 3: Cross multiply
    12,270.57x = 18,407.03 × 4,477.53
  4. Step 4: Simplify right side
    12,270.57x = 82,418,006.65
  5. Step 5: Solve for x
    x = 82,418,006.65/12,270.57
  6. Step 6: Final answer
    x = 6,716.72

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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.