Home / 11,130.68-15,278.46-9,843.52

Finding the Fourth Proportional to 11,130.68, 15,278.46 and 9,843.52

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Solution

The fourth proportional to 11,130.68, 15,278.46 and 9,843.52 is: 13,511.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.68 : 15,278.46 = 9,843.52 : x
  2. Step 2: Convert to fraction form
    11,130.68/15,278.46 = 9,843.52/x
  3. Step 3: Cross multiply
    11,130.68x = 15,278.46 × 9,843.52
  4. Step 4: Simplify right side
    11,130.68x = 150,393,826.58
  5. Step 5: Solve for x
    x = 150,393,826.58/11,130.68
  6. Step 6: Final answer
    x = 13,511.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.