Home / 19,282.09-28,919.58-8,749.57

Finding the Fourth Proportional to 19,282.09, 28,919.58 and 8,749.57

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Solution

The fourth proportional to 19,282.09, 28,919.58 and 8,749.57 is: 13,122.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.09 : 28,919.58 = 8,749.57 : x
  2. Step 2: Convert to fraction form
    19,282.09/28,919.58 = 8,749.57/x
  3. Step 3: Cross multiply
    19,282.09x = 28,919.58 × 8,749.57
  4. Step 4: Simplify right side
    19,282.09x = 253,033,889.58
  5. Step 5: Solve for x
    x = 253,033,889.58/19,282.09
  6. Step 6: Final answer
    x = 13,122.74

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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.