Home / 18,856.91-28,285.25-4,625.21

Finding the Fourth Proportional to 18,856.91, 28,285.25 and 4,625.21

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Solution

The fourth proportional to 18,856.91, 28,285.25 and 4,625.21 is: 6,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.91 : 28,285.25 = 4,625.21 : x
  2. Step 2: Convert to fraction form
    18,856.91/28,285.25 = 4,625.21/x
  3. Step 3: Cross multiply
    18,856.91x = 28,285.25 × 4,625.21
  4. Step 4: Simplify right side
    18,856.91x = 130,825,268.74
  5. Step 5: Solve for x
    x = 130,825,268.74/18,856.91
  6. Step 6: Final answer
    x = 6,937.79

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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.