Home / 12,653.58-18,977.84-4,332.90

Finding the Fourth Proportional to 12,653.58, 18,977.84 and 4,332.90

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Solution

The fourth proportional to 12,653.58, 18,977.84 and 4,332.90 is: 6,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.58 : 18,977.84 = 4,332.90 : x
  2. Step 2: Convert to fraction form
    12,653.58/18,977.84 = 4,332.90/x
  3. Step 3: Cross multiply
    12,653.58x = 18,977.84 × 4,332.90
  4. Step 4: Simplify right side
    12,653.58x = 82,228,998.88
  5. Step 5: Solve for x
    x = 82,228,998.88/12,653.58
  6. Step 6: Final answer
    x = 6,498.48

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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.