Home / 14,269.14-19,692.54-7,981.20

Finding the Fourth Proportional to 14,269.14, 19,692.54 and 7,981.20

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Solution

The fourth proportional to 14,269.14, 19,692.54 and 7,981.20 is: 11,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.14 : 19,692.54 = 7,981.20 : x
  2. Step 2: Convert to fraction form
    14,269.14/19,692.54 = 7,981.20/x
  3. Step 3: Cross multiply
    14,269.14x = 19,692.54 × 7,981.20
  4. Step 4: Simplify right side
    14,269.14x = 157,170,100.25
  5. Step 5: Solve for x
    x = 157,170,100.25/14,269.14
  6. Step 6: Final answer
    x = 11,014.69

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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.