Home / 14,130.56-21,195.84-5,815.10

Finding the Fourth Proportional to 14,130.56, 21,195.84 and 5,815.10

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Solution

The fourth proportional to 14,130.56, 21,195.84 and 5,815.10 is: 8,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.56 : 21,195.84 = 5,815.10 : x
  2. Step 2: Convert to fraction form
    14,130.56/21,195.84 = 5,815.10/x
  3. Step 3: Cross multiply
    14,130.56x = 21,195.84 × 5,815.10
  4. Step 4: Simplify right side
    14,130.56x = 123,256,003.98
  5. Step 5: Solve for x
    x = 123,256,003.98/14,130.56
  6. Step 6: Final answer
    x = 8,722.65

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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.