Home / 13,872.12-20,810.94-4,011.51

Finding the Fourth Proportional to 13,872.12, 20,810.94 and 4,011.51

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Solution

The fourth proportional to 13,872.12, 20,810.94 and 4,011.51 is: 6,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.12 : 20,810.94 = 4,011.51 : x
  2. Step 2: Convert to fraction form
    13,872.12/20,810.94 = 4,011.51/x
  3. Step 3: Cross multiply
    13,872.12x = 20,810.94 × 4,011.51
  4. Step 4: Simplify right side
    13,872.12x = 83,483,293.92
  5. Step 5: Solve for x
    x = 83,483,293.92/13,872.12
  6. Step 6: Final answer
    x = 6,018.06

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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.