Home / 8,219.67-11,340.37-4,680.37

Finding the Fourth Proportional to 8,219.67, 11,340.37 and 4,680.37

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Solution

The fourth proportional to 8,219.67, 11,340.37 and 4,680.37 is: 6,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.67 : 11,340.37 = 4,680.37 : x
  2. Step 2: Convert to fraction form
    8,219.67/11,340.37 = 4,680.37/x
  3. Step 3: Cross multiply
    8,219.67x = 11,340.37 × 4,680.37
  4. Step 4: Simplify right side
    8,219.67x = 53,077,127.54
  5. Step 5: Solve for x
    x = 53,077,127.54/8,219.67
  6. Step 6: Final answer
    x = 6,457.33

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,220.67, 11,341.75 and 4,681.37
Similar ratio
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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.