Home / 16,315.70-22,493.68-10,639.22

Finding the Fourth Proportional to 16,315.70, 22,493.68 and 10,639.22

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Solution

The fourth proportional to 16,315.70, 22,493.68 and 10,639.22 is: 14,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,315.70 : 22,493.68 = 10,639.22 : x
  2. Step 2: Convert to fraction form
    16,315.70/22,493.68 = 10,639.22/x
  3. Step 3: Cross multiply
    16,315.70x = 22,493.68 × 10,639.22
  4. Step 4: Simplify right side
    16,315.70x = 239,315,210.13
  5. Step 5: Solve for x
    x = 239,315,210.13/16,315.70
  6. Step 6: Final answer
    x = 14,667.79

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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.