Home / 12,962.49-19,443.72-4,077.78

Finding the Fourth Proportional to 12,962.49, 19,443.72 and 4,077.78

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Solution

The fourth proportional to 12,962.49, 19,443.72 and 4,077.78 is: 6,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.49 : 19,443.72 = 4,077.78 : x
  2. Step 2: Convert to fraction form
    12,962.49/19,443.72 = 4,077.78/x
  3. Step 3: Cross multiply
    12,962.49x = 19,443.72 × 4,077.78
  4. Step 4: Simplify right side
    12,962.49x = 79,287,212.54
  5. Step 5: Solve for x
    x = 79,287,212.54/12,962.49
  6. Step 6: Final answer
    x = 6,116.67

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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.