Home / 14,120.69-19,486.77-7,747.84

Finding the Fourth Proportional to 14,120.69, 19,486.77 and 7,747.84

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Solution

The fourth proportional to 14,120.69, 19,486.77 and 7,747.84 is: 10,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.69 : 19,486.77 = 7,747.84 : x
  2. Step 2: Convert to fraction form
    14,120.69/19,486.77 = 7,747.84/x
  3. Step 3: Cross multiply
    14,120.69x = 19,486.77 × 7,747.84
  4. Step 4: Simplify right side
    14,120.69x = 150,980,376.08
  5. Step 5: Solve for x
    x = 150,980,376.08/14,120.69
  6. Step 6: Final answer
    x = 10,692.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.