Home / 12,217.77-18,313.43-5,981.99

Finding the Fourth Proportional to 12,217.77, 18,313.43 and 5,981.99

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Solution

The fourth proportional to 12,217.77, 18,313.43 and 5,981.99 is: 8,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.77 : 18,313.43 = 5,981.99 : x
  2. Step 2: Convert to fraction form
    12,217.77/18,313.43 = 5,981.99/x
  3. Step 3: Cross multiply
    12,217.77x = 18,313.43 × 5,981.99
  4. Step 4: Simplify right side
    12,217.77x = 109,550,633.65
  5. Step 5: Solve for x
    x = 109,550,633.65/12,217.77
  6. Step 6: Final answer
    x = 8,966.50

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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.