Home / 19,278.06-28,890.96-8,734.92

Finding the Fourth Proportional to 19,278.06, 28,890.96 and 8,734.92

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Solution

The fourth proportional to 19,278.06, 28,890.96 and 8,734.92 is: 13,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.06 : 28,890.96 = 8,734.92 : x
  2. Step 2: Convert to fraction form
    19,278.06/28,890.96 = 8,734.92/x
  3. Step 3: Cross multiply
    19,278.06x = 28,890.96 × 8,734.92
  4. Step 4: Simplify right side
    19,278.06x = 252,360,224.32
  5. Step 5: Solve for x
    x = 252,360,224.32/19,278.06
  6. Step 6: Final answer
    x = 13,090.54

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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.