Home / 13,087.76-19,640.32-6,162.80

Finding the Fourth Proportional to 13,087.76, 19,640.32 and 6,162.80

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Solution

The fourth proportional to 13,087.76, 19,640.32 and 6,162.80 is: 9,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.76 : 19,640.32 = 6,162.80 : x
  2. Step 2: Convert to fraction form
    13,087.76/19,640.32 = 6,162.80/x
  3. Step 3: Cross multiply
    13,087.76x = 19,640.32 × 6,162.80
  4. Step 4: Simplify right side
    13,087.76x = 121,039,364.10
  5. Step 5: Solve for x
    x = 121,039,364.10/13,087.76
  6. Step 6: Final answer
    x = 9,248.29

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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.