Home / 14,178.76-21,268.16-3,790.51

Finding the Fourth Proportional to 14,178.76, 21,268.16 and 3,790.51

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Solution

The fourth proportional to 14,178.76, 21,268.16 and 3,790.51 is: 5,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.76 : 21,268.16 = 3,790.51 : x
  2. Step 2: Convert to fraction form
    14,178.76/21,268.16 = 3,790.51/x
  3. Step 3: Cross multiply
    14,178.76x = 21,268.16 × 3,790.51
  4. Step 4: Simplify right side
    14,178.76x = 80,617,173.16
  5. Step 5: Solve for x
    x = 80,617,173.16/14,178.76
  6. Step 6: Final answer
    x = 5,685.77

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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.