Home / 12,210.99-18,305.55-4,417.98

Finding the Fourth Proportional to 12,210.99, 18,305.55 and 4,417.98

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Solution

The fourth proportional to 12,210.99, 18,305.55 and 4,417.98 is: 6,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.99 : 18,305.55 = 4,417.98 : x
  2. Step 2: Convert to fraction form
    12,210.99/18,305.55 = 4,417.98/x
  3. Step 3: Cross multiply
    12,210.99x = 18,305.55 × 4,417.98
  4. Step 4: Simplify right side
    12,210.99x = 80,873,553.79
  5. Step 5: Solve for x
    x = 80,873,553.79/12,210.99
  6. Step 6: Final answer
    x = 6,623.01

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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.