Home / 15,488.91-23,221.61-7,984.38

Finding the Fourth Proportional to 15,488.91, 23,221.61 and 7,984.38

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Solution

The fourth proportional to 15,488.91, 23,221.61 and 7,984.38 is: 11,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488.91 : 23,221.61 = 7,984.38 : x
  2. Step 2: Convert to fraction form
    15,488.91/23,221.61 = 7,984.38/x
  3. Step 3: Cross multiply
    15,488.91x = 23,221.61 × 7,984.38
  4. Step 4: Simplify right side
    15,488.91x = 185,410,258.01
  5. Step 5: Solve for x
    x = 185,410,258.01/15,488.91
  6. Step 6: Final answer
    x = 11,970.51

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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.