Home / 18,959.06-28,438.78-7,269.50

Finding the Fourth Proportional to 18,959.06, 28,438.78 and 7,269.50

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Solution

The fourth proportional to 18,959.06, 28,438.78 and 7,269.50 is: 10,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.06 : 28,438.78 = 7,269.50 : x
  2. Step 2: Convert to fraction form
    18,959.06/28,438.78 = 7,269.50/x
  3. Step 3: Cross multiply
    18,959.06x = 28,438.78 × 7,269.50
  4. Step 4: Simplify right side
    18,959.06x = 206,735,711.21
  5. Step 5: Solve for x
    x = 206,735,711.21/18,959.06
  6. Step 6: Final answer
    x = 10,904.32

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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.