Home / 16,220.71-22,383.72-9,146.67

Finding the Fourth Proportional to 16,220.71, 22,383.72 and 9,146.67

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Solution

The fourth proportional to 16,220.71, 22,383.72 and 9,146.67 is: 12,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.71 : 22,383.72 = 9,146.67 : x
  2. Step 2: Convert to fraction form
    16,220.71/22,383.72 = 9,146.67/x
  3. Step 3: Cross multiply
    16,220.71x = 22,383.72 × 9,146.67
  4. Step 4: Simplify right side
    16,220.71x = 204,736,516.46
  5. Step 5: Solve for x
    x = 204,736,516.46/16,220.71
  6. Step 6: Final answer
    x = 12,621.92

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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.