Home / 8,219.54-11,343.96-4,635.18

Finding the Fourth Proportional to 8,219.54, 11,343.96 and 4,635.18

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Solution

The fourth proportional to 8,219.54, 11,343.96 and 4,635.18 is: 6,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.54 : 11,343.96 = 4,635.18 : x
  2. Step 2: Convert to fraction form
    8,219.54/11,343.96 = 4,635.18/x
  3. Step 3: Cross multiply
    8,219.54x = 11,343.96 × 4,635.18
  4. Step 4: Simplify right side
    8,219.54x = 52,581,296.51
  5. Step 5: Solve for x
    x = 52,581,296.51/8,219.54
  6. Step 6: Final answer
    x = 6,397.11

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Half scale
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Double scale
Find fourth proportional to 8,220.54, 11,345.34 and 4,636.18
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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.