Home / 14,028.04-21,008.94-7,778.92

Finding the Fourth Proportional to 14,028.04, 21,008.94 and 7,778.92

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Solution

The fourth proportional to 14,028.04, 21,008.94 and 7,778.92 is: 11,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.04 : 21,008.94 = 7,778.92 : x
  2. Step 2: Convert to fraction form
    14,028.04/21,008.94 = 7,778.92/x
  3. Step 3: Cross multiply
    14,028.04x = 21,008.94 × 7,778.92
  4. Step 4: Simplify right side
    14,028.04x = 163,426,863.54
  5. Step 5: Solve for x
    x = 163,426,863.54/14,028.04
  6. Step 6: Final answer
    x = 11,650.01

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Half scale
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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.