Home / 9,511.23-13,125.48-5,319.48

Finding the Fourth Proportional to 9,511.23, 13,125.48 and 5,319.48

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Solution

The fourth proportional to 9,511.23, 13,125.48 and 5,319.48 is: 7,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.23 : 13,125.48 = 5,319.48 : x
  2. Step 2: Convert to fraction form
    9,511.23/13,125.48 = 5,319.48/x
  3. Step 3: Cross multiply
    9,511.23x = 13,125.48 × 5,319.48
  4. Step 4: Simplify right side
    9,511.23x = 69,820,728.35
  5. Step 5: Solve for x
    x = 69,820,728.35/9,511.23
  6. Step 6: Final answer
    x = 7,340.87

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Half scale
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Double scale
Find fourth proportional to 9,512.23, 13,126.86 and 5,320.48
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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.