Home / 9,380.91-14,071.37-3,139.76

Finding the Fourth Proportional to 9,380.91, 14,071.37 and 3,139.76

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Solution

The fourth proportional to 9,380.91, 14,071.37 and 3,139.76 is: 4,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.91 : 14,071.37 = 3,139.76 : x
  2. Step 2: Convert to fraction form
    9,380.91/14,071.37 = 3,139.76/x
  3. Step 3: Cross multiply
    9,380.91x = 14,071.37 × 3,139.76
  4. Step 4: Simplify right side
    9,380.91x = 44,180,724.67
  5. Step 5: Solve for x
    x = 44,180,724.67/9,380.91
  6. Step 6: Final answer
    x = 4,709.64

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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.