Home / 19,071.53-28,611.42-7,826.90

Finding the Fourth Proportional to 19,071.53, 28,611.42 and 7,826.90

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Solution

The fourth proportional to 19,071.53, 28,611.42 and 7,826.90 is: 11,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.53 : 28,611.42 = 7,826.90 : x
  2. Step 2: Convert to fraction form
    19,071.53/28,611.42 = 7,826.90/x
  3. Step 3: Cross multiply
    19,071.53x = 28,611.42 × 7,826.90
  4. Step 4: Simplify right side
    19,071.53x = 223,938,723.20
  5. Step 5: Solve for x
    x = 223,938,723.20/19,071.53
  6. Step 6: Final answer
    x = 11,742.04

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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.