Home / 11,285.16-15,578.84-7,514.60

Finding the Fourth Proportional to 11,285.16, 15,578.84 and 7,514.60

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Solution

The fourth proportional to 11,285.16, 15,578.84 and 7,514.60 is: 10,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.16 : 15,578.84 = 7,514.60 : x
  2. Step 2: Convert to fraction form
    11,285.16/15,578.84 = 7,514.60/x
  3. Step 3: Cross multiply
    11,285.16x = 15,578.84 × 7,514.60
  4. Step 4: Simplify right side
    11,285.16x = 117,068,751.06
  5. Step 5: Solve for x
    x = 117,068,751.06/11,285.16
  6. Step 6: Final answer
    x = 10,373.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.