Home / 15,155.08-20,932.78-10,698.73

Finding the Fourth Proportional to 15,155.08, 20,932.78 and 10,698.73

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Solution

The fourth proportional to 15,155.08, 20,932.78 and 10,698.73 is: 14,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.08 : 20,932.78 = 10,698.73 : x
  2. Step 2: Convert to fraction form
    15,155.08/20,932.78 = 10,698.73/x
  3. Step 3: Cross multiply
    15,155.08x = 20,932.78 × 10,698.73
  4. Step 4: Simplify right side
    15,155.08x = 223,954,161.37
  5. Step 5: Solve for x
    x = 223,954,161.37/15,155.08
  6. Step 6: Final answer
    x = 14,777.50

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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.