Home / 7,512.24-11,204.85-7,078.62

Finding the Fourth Proportional to 7,512.24, 11,204.85 and 7,078.62

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Solution

The fourth proportional to 7,512.24, 11,204.85 and 7,078.62 is: 10,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.24 : 11,204.85 = 7,078.62 : x
  2. Step 2: Convert to fraction form
    7,512.24/11,204.85 = 7,078.62/x
  3. Step 3: Cross multiply
    7,512.24x = 11,204.85 × 7,078.62
  4. Step 4: Simplify right side
    7,512.24x = 79,314,875.31
  5. Step 5: Solve for x
    x = 79,314,875.31/7,512.24
  6. Step 6: Final answer
    x = 10,558.09

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Half scale
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Double scale
Find fourth proportional to 7,513.24, 11,206.34 and 7,079.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.