Home / 14,786.58-20,400.12-11,384.64

Finding the Fourth Proportional to 14,786.58, 20,400.12 and 11,384.64

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Solution

The fourth proportional to 14,786.58, 20,400.12 and 11,384.64 is: 15,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.58 : 20,400.12 = 11,384.64 : x
  2. Step 2: Convert to fraction form
    14,786.58/20,400.12 = 11,384.64/x
  3. Step 3: Cross multiply
    14,786.58x = 20,400.12 × 11,384.64
  4. Step 4: Simplify right side
    14,786.58x = 232,248,022.16
  5. Step 5: Solve for x
    x = 232,248,022.16/14,786.58
  6. Step 6: Final answer
    x = 15,706.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.