Home / 13,087.68-19,618.96-5,684.80

Finding the Fourth Proportional to 13,087.68, 19,618.96 and 5,684.80

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Solution

The fourth proportional to 13,087.68, 19,618.96 and 5,684.80 is: 8,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.68 : 19,618.96 = 5,684.80 : x
  2. Step 2: Convert to fraction form
    13,087.68/19,618.96 = 5,684.80/x
  3. Step 3: Cross multiply
    13,087.68x = 19,618.96 × 5,684.80
  4. Step 4: Simplify right side
    13,087.68x = 111,529,863.81
  5. Step 5: Solve for x
    x = 111,529,863.81/13,087.68
  6. Step 6: Final answer
    x = 8,521.74

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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.