Home / 7,528.86-11,295.72-3,147.57

Finding the Fourth Proportional to 7,528.86, 11,295.72 and 3,147.57

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Solution

The fourth proportional to 7,528.86, 11,295.72 and 3,147.57 is: 4,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.86 : 11,295.72 = 3,147.57 : x
  2. Step 2: Convert to fraction form
    7,528.86/11,295.72 = 3,147.57/x
  3. Step 3: Cross multiply
    7,528.86x = 11,295.72 × 3,147.57
  4. Step 4: Simplify right side
    7,528.86x = 35,554,069.40
  5. Step 5: Solve for x
    x = 35,554,069.40/7,528.86
  6. Step 6: Final answer
    x = 4,722.37

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Half scale
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Double scale
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Similar ratio
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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.