Home / 8,218.20-11,340.74-4,681.32

Finding the Fourth Proportional to 8,218.20, 11,340.74 and 4,681.32

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Solution

The fourth proportional to 8,218.20, 11,340.74 and 4,681.32 is: 6,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.20 : 11,340.74 = 4,681.32 : x
  2. Step 2: Convert to fraction form
    8,218.20/11,340.74 = 4,681.32/x
  3. Step 3: Cross multiply
    8,218.20x = 11,340.74 × 4,681.32
  4. Step 4: Simplify right side
    8,218.20x = 53,089,632.98
  5. Step 5: Solve for x
    x = 53,089,632.98/8,218.20
  6. Step 6: Final answer
    x = 6,460.01

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Half scale
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Double scale
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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.