Home / 14,577.40-21,815.70-8,738.20

Finding the Fourth Proportional to 14,577.40, 21,815.70 and 8,738.20

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Solution

The fourth proportional to 14,577.40, 21,815.70 and 8,738.20 is: 13,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.40 : 21,815.70 = 8,738.20 : x
  2. Step 2: Convert to fraction form
    14,577.40/21,815.70 = 8,738.20/x
  3. Step 3: Cross multiply
    14,577.40x = 21,815.70 × 8,738.20
  4. Step 4: Simplify right side
    14,577.40x = 190,629,949.74
  5. Step 5: Solve for x
    x = 190,629,949.74/14,577.40
  6. Step 6: Final answer
    x = 13,077.09

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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.