Home / 14,206.80-21,309.48-3,818.64

Finding the Fourth Proportional to 14,206.80, 21,309.48 and 3,818.64

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Solution

The fourth proportional to 14,206.80, 21,309.48 and 3,818.64 is: 5,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,206.80 : 21,309.48 = 3,818.64 : x
  2. Step 2: Convert to fraction form
    14,206.80/21,309.48 = 3,818.64/x
  3. Step 3: Cross multiply
    14,206.80x = 21,309.48 × 3,818.64
  4. Step 4: Simplify right side
    14,206.80x = 81,373,232.71
  5. Step 5: Solve for x
    x = 81,373,232.71/14,206.80
  6. Step 6: Final answer
    x = 5,727.77

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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.