Home / 16,660.40-22,990.71-9,106.67

Finding the Fourth Proportional to 16,660.40, 22,990.71 and 9,106.67

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Solution

The fourth proportional to 16,660.40, 22,990.71 and 9,106.67 is: 12,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.40 : 22,990.71 = 9,106.67 : x
  2. Step 2: Convert to fraction form
    16,660.40/22,990.71 = 9,106.67/x
  3. Step 3: Cross multiply
    16,660.40x = 22,990.71 × 9,106.67
  4. Step 4: Simplify right side
    16,660.40x = 209,368,694.08
  5. Step 5: Solve for x
    x = 209,368,694.08/16,660.40
  6. Step 6: Final answer
    x = 12,566.85

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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.