Home / 8,275.72-11,420.21-4,738.25

Finding the Fourth Proportional to 8,275.72, 11,420.21 and 4,738.25

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Solution

The fourth proportional to 8,275.72, 11,420.21 and 4,738.25 is: 6,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.72 : 11,420.21 = 4,738.25 : x
  2. Step 2: Convert to fraction form
    8,275.72/11,420.21 = 4,738.25/x
  3. Step 3: Cross multiply
    8,275.72x = 11,420.21 × 4,738.25
  4. Step 4: Simplify right side
    8,275.72x = 54,111,810.03
  5. Step 5: Solve for x
    x = 54,111,810.03/8,275.72
  6. Step 6: Final answer
    x = 6,538.62

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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.