Home / 14,121.81-19,487.97-7,748.28

Finding the Fourth Proportional to 14,121.81, 19,487.97 and 7,748.28

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Solution

The fourth proportional to 14,121.81, 19,487.97 and 7,748.28 is: 10,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.81 : 19,487.97 = 7,748.28 : x
  2. Step 2: Convert to fraction form
    14,121.81/19,487.97 = 7,748.28/x
  3. Step 3: Cross multiply
    14,121.81x = 19,487.97 × 7,748.28
  4. Step 4: Simplify right side
    14,121.81x = 150,998,248.19
  5. Step 5: Solve for x
    x = 150,998,248.19/14,121.81
  6. Step 6: Final answer
    x = 10,692.56

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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.